point O is center of circle. measure of CAD = 35° and BFC = 105° what is measure of AOB!
1. point O is center of circle. measure of CAD = 35° and BFC = 105° what is measure of AOB!
Jawaban:
80
Penjelasan dengan langkah-langkah:
I hope this helps...!!!2. If a sector of a circle has an arc lenght of 2π inches and an area of 6π square inches, what is the radius of the circle?mohon bantuannya
arc length=keliling=2π
area=luas=6π²
radius=jari jari
keliling lingkaran=2πr
2π=2πr
r=1 inch
Maaf kalau salah
3. if the radius of the circle is 25 cm, what is the circumference of the circle?
ANSWER BY : Rivtno___________________Radius = Half of diameter = 25Circumference Of the circle formula =2πr
JAWAB =2πr
=2×3,14×25
=6,28×25
=157CM
SEMOGA BERMANFAAT
4. the area of the circle is 3850 cm² the diameter of the circle is
Jawaban:
L = 3.850 cm²
• cari jari"
L = π x r²
3.850 = 22/7 x r²
3.850 x 7 = 22 x r²
26.950 : 22 = r²
1.225 = r²
√1.225 = r
35 = r
jari" = 35 cm
• cari diameter
d = 2r
d = 2(35)
d = 70 cm
diameter = 70 cm5. what is the shape of the arc? it is
Jawaban:
Jawaban:The answer is in the photo ☺️Penjelasan: Semoga Membantu ^_^Maaf kalo diikitJawaban:
what is the shape of the arc? it is a curved line that is in the curvature of the circle.
6. Bernard wants to measure the perimeter of his room. The room is parallelogram in shape and is 7m long and 7m wide. What is the perimeter of the room in square cm?
The perimeter P of a rectangle is given by the formula, P=2l+2w , where l is the length and w is the width of the rectangle
7. 2 9. The radius of a circle is 21 cm. Find the circumference of the circle in terms of t?
The circumference of the circle is 132 cm
Step by stepCircumference of the circle
= 2 × π × r
= 2 × 22/7 × 21
= 2 × 22 × 3
= 132 cm
Jawab:
Penjelasan dengan langkah-langkah:
radius(jari-jari)=21cm
cicumfence(keliling)=?
C=2xπxr
C=2x22/7x21
C=132cm
the cicumfence is 132cm
8. suppose the radius of a circle is 8units. what is its circumference
Circle
Solve for circumference
C≈50.27
Have a nice day ✨
9. 5. What is circle6. What are rectangle?7. What is the shape of pencil?
Jawaban:
5.A building that has curves and has no sides
6.
A building that has 4 sides and 2 sides that are the same length
7.Irregular
10. the area of the circle which is formed by an arc and the two parts of the radius are called ...
Jawab:
Diameter
Penjelasan dengan langkah-langkah:
The diameter cuts the circle exactly in half and goes through the centre.
(yea i know this is my second try ;-; )
11. The distances of any two adjacent points on the circle below are the same. The measure of a where a is the angle between two rays inside the circle, isjawab dengan benar ya pliss
Penjelasan:
Jarak dua titik yang berdekatan pada lingkaran di bawah ini adalah sama. Besarnya a di mana a adalah sudut antara dua sinar di dalam lingkaran, adalah
gambar ny yg mana??
12. What is the measure of angle x?
Jawaban:
102
Penjelasan dengan langkah-langkah:
x dalam segitiga itu cara hitungnya=180-(58+44)
=180-102
×segitiga=78
x=180-78
×=102
13. Quizif the diameter of the circle is 200 cm then what is the radius, area, then what is the circumference of the circle?Use Explain!
》Bangun Datar
=>JariJari
= D ÷ 2
= 200 ÷ 2
= 100 cm
=>Luas
= πr²
= 3,14 × 100 × 100
= 314 × 100
= 31.400 cm²
=>Keliling
= 2πr
= 2 × 3,14 × 100
= 2 × 314
= 628 cm
Semoga Membantu
Jawaban:
Radius
100 cm
Area
31.400 cm²
circumference
628 cm
14. a circle has a circumference of 907. 46 units. what is the diameter of the circle?
Jawaban:
sebuah lingkaran memiliki keliling 907,46 unit. berapa diameter lingkaran tersebut
15. A circle has a circumference of 88cm .What is the diameter of the circle
Sebuah lingkaran memiliki keliling 88 cm. Berapa diameter lingkaran tersebut?
Dik : K = 88 cm
Dit : d......?
PENJELASAN:
d = 2 × π × r
= 2 × 3,14 × 88
= 2 × 276,32
= 552,64
16. If the length of r is 40 cm. What is the area of the circle?tolong bantu
Penyelesaian
Diketahui
jari jari (r) = 40 cm[tex]~[/tex]
Ditanya
Luas = ... cm²
[tex]~[/tex]
Jawab
L = πr²
L = 3,14 × 40²
L = 3,14 × 1.600
L = 314 × 16
L = 5.024 cm²
[tex]~[/tex]
KesimpulanJadi, luas dari lingkaran tersebut adalah 5.024 cm²
[tex]~[/tex]
Detail JawabanMapel: MatematikaKelas: 6 SDMateri: Bab 4 - Luas dan VolumeKode Soal: 2Kode Kategorisasi: 6.2.417. The distances of any two adjacent points on the circle below are the same. The measure of a where a is the angle between two rays inside the circle, is
Jawaban:
jarak dua titik yang berdekatan pada lingkaran di bawah ini adalah sama .ukuran a di mana a adalah sudut antara dua sinar di dalam lingkaran, adalah
Penjelasan:
maaf kalo salah
18. If a sector of a circle has an arc lenght of 2π inches and an area of 6π square inches, what is the radius of the circle?mohon bantuannya kak
terjemahan: jika juring dari sebuah lingkaran memiliki panjang busur 2π inci dan luasnya adalah 6π inci², berapa radius (jari²) dari lingkaran tsb?
jawab:
luas juring (sector's area) = 6π
panjang busur (arc length) = 2π
[tex] \frac{ \alpha }{360°} \times \pi \times 2r = 2\pi \\ \frac{ \alpha }{360°} \times 2\pi r = 2\pi \\ \frac{ \alpha }{360°} \times r = 1 \\ r = \frac{1 \times 360°}{ \alpha } = \frac{360}{ \alpha }[/tex]
[tex] \frac{ \alpha }{360°} \times \pi \times {r}^{2} = 6\pi \\ \frac{ \alpha }{360°} \times {r}^{2} = 6 \\ {r}^{2} = \frac{6 \times 360°}{ \alpha } = \frac{720}{ \alpha } [/tex]
[tex] \frac{ {r}^{2} }{r} = r \\ \frac{ \frac{720}{ \alpha }}{ \frac{360}{ \alpha } } = r \\ \frac{720}{ \alpha } \times \frac{ \alpha }{360°} = r \\ 2 = r \\ r = 2[/tex]
Catatan:
[tex] \frac{ \alpha }{360°} \times \pi \times 2r \: adalah \: rumus \: menentukan \: panjang \: busur \\ \frac{ \alpha }{360°} \times \pi \times {r}^{2} \: adalah \: rumus \: menentukan \: luas \: juring[/tex]
19. what is the smallest and the biggest circle in the world ?
apa yg paling kecil dan paling besar dilingkaran bumiapa lingkaran terbesar dan terkecil di dunia?
20. what is the formula of circumference ?( circle )
rumusnya adalah
Rumus Keliling Lingkaran
Sedangkan untuk Cara Menghitung Luas Lingkaran hampir sama dg Rumus Luas Lingkaran hanya saja K = 2.π.r dan perbedaannya terdapat pada jumlah kali r yg dua. Ingat bahwa Rumus Keliling dan Luas Lingkaran hampir sama sehingga anda harus benar – benar dipahami dan dihafalkan secara betul.

Rumus Diameter Lingkaran
Sedangkan untuk Cara Menghitung Rumus Diameter Lingkaran malah terlihat lebih sederhana karena d = 2 x r dan penjelasan lebih lengkapnya bisa anda lihat dibawah ini.

Baiklah setelah anda mengetahui dan memahami Rumus Luas, Keliling dan Diameter Lingkaran maka alangkah baiknya jika anda langsung melihat contoh Soal – Soal Matematika Lingkaran yg bisa anda lihat beserta jawabanya langsung agar anda bisa lebih paham dan maksud akan Rumus Lingkaran ini.
Contoh Soal Matematika Lingkaran
1. Diket Roda berbentuk Lingkaran mempunyai Diameter sebesar 30 cm maka tentukan jumlah Luas Lingkaran dan Keliling Lingkaran yg ada.
Jawaban Mencari Luas Lingkaran
Luas = π.r.r
Luas = 3,14 x 15 x 15 — > ( jari-jari 15 diperoleh dari d = 30/2 = 15)
Luas = 3,14 x 225 = 707 cm²
Jawaban Mencari Keliling Lingkaran
Keliling = 2.π.r
K = 2. 22/7.15
K = 30 x 22/7
K= 660 / 7 = 95 cm
circumference= keliling
circle = lingkaran
formula is :
if known diameter---> C=dπ
if known radius --> C=2πr , r = 1/2 d
and π = 22/7 or 3,14
thank's
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