The base of an isosceles triangle measures 24 cm.and it's area is 192cm2.find it's height
1. The base of an isosceles triangle measures 24 cm.and it's area is 192cm2.find it's height
Jawab:
Penjelasan dengan langkah-langkah:
192cm²=1/2.24cm.h
192cm²=12cm.h
h=192cm²/12cm
h=16cm
So the height is 16cm
^^
2. Find the area of trapezoid to the nearest tenth
Penjelasan dengan langkah-langkah:
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3. Find the measure of angle L
Jawaban:
study more your self go study
4. if the measure of <BOC = 80 derajat. find the measure og <AOC !
measure of <AOC
=180°-80°
=100°
maaf jika salah :)
5. Given measure of an angle is 2/3 of it's complimentary angle. The measure of that angle is
Let [tex]\alpha[/tex] be an angle so that [tex]\beta[/tex] is its complementary angle.
We know that:
[tex]\alpha + \beta = 90^o[/tex]
Plugging in [tex]\alpha = \frac{2}{3} \beta[/tex] we get:
[tex]\frac{2}{3} \beta + \beta = 90^o \\ \frac{5}{3}\beta = 90^o \\ \beta = 54^o[/tex]
So our final answer is:
[tex]\alpha = \frac{2}{3}\beta = \frac{2}{3}(54^o) = 36^o[/tex]
6. In rhombus ABCD,ECF is an isosceles triangle and AEF = 117° Find ABC
Jawaban:
the working and the answer are shown in the pic
semangat belajar;))
7. The equal sides of an isosceles triangle are 2 cm shorter than the length of the third side. If the perimeter of the triangle is 35 cm, find the length of the third side.pake cara kak kalo bole :)
Jawaban:
cara dan jawabannya seperti di foto ya.
semangat belajar
semoga membantu;))
8. 12. The diagonal of a trapezoid ( trapesium sama kaki) is 10 cm. The diagonal and thebottom of the trepezoid form a 45° angle.the area of the trapezoid is ...cm?
Jawaban:
rumus, cara, dan jawabannya seperti di foto
semangat belajar
#Pertamax
9. in an isosceles triangle,one angle is three times the size of the other two angles. Work out the size of each angle.
Jawab:
Penjelasan dengan langkah-langkah:
Penjelasan dengan langkah-langkah:
total angles in a triangle is 180.
one angle is three times the size of the other two angles.
so:
x + x + 3x = 180
5x = 180
x = 36 degrees (size of each base angles)
one angle is three times the size of the other two angles
first angle: 36
second angle: 36
third angle: 3 × 36 = 108
10. the shape of the door is... a.Triangle c. Circle b. Trapezoid d. Rectangle
Jawaban:
rectangle/d
Penjelasan:
rata rata pintu bentuk nya persegi panjang jd tergantung pintu yg kamu maksud
11. Find the unknown marked angle in each of the Isosceles triangles.
karena DF dan EF sama panjang, maka sudut D dan sudut E sama besar.
EF = DF = 53°
Untuk menghitung sudut F maka
180° - 53° - 53° = 74°
Semoga membantu ;)
12. CG is parallel line to EHFind :a. The value of ab. The measure of angle <DCG
Penjelasan dengan langkah-langkah:
8a-45=6a-13
8a-6a=32
2a=32
a=16
sudutDCG=8a-45=8(16)-45=83⁰
13. Angle ABCD is a trapezium, ABE is an isosceles triangle. Find
Jawaban:
Saya tidak tahu
Penjelasan dengan langkah-langkah:
Terimakasih
14. 60 37⁰ The measure of b is....
Jawaban:
53°
Penjelasan dengan langkah-langkah:
90-37=53
Karena sudut siku siku ada 90°
o 53°
Penjelasan dengan langkah-langkah:
b + 37° = 90° (berpenyiku)
b = 90 - 37
b = [tex] \red{ \sf \: 53°}[/tex]
15. 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
16. Solve for x and find the measure of the bold angle
[tex]16x - 6 = 14x + 6 \\ 16x - 14x = 6 + 6 \\ 2x = 12 \\ x = \frac{12}{2} \\ x = 6 \\ \\ bold \: angle \\ 14x + 6 \\ 14.6 + 6 \\ 84 + 6 \\ 90[/tex]
17. The perimeter of an isosceles triangle is 36 cm. If the base is 10 cm, the area of the triangle is .... cm2. (Pythagorean Theorem)
Penjelasan dengan langkah-langkah:
½ kali 10 kali 36 =
10 kali 36 : 2 =
360 : 2 = 180 cm²
maaf kalo salah ^_^
Pythagorean Theorem"In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides".
Question:
The perimeter of an isosceles triangle is 36 cm. If the base is 10 cm of length, the area of the triangle is ... cm²
Step by step:
Isosceles triangle have 36 cm of its perimeter. The perimeter of triangle is calculated by sum of each side.
Finding length of each leg (x):
36 cm = 10 + x + x
36 = 10 + 2x
26 = 2x
x = 13 cm.
To find the height of triangle, use pythagorean theorem. Let height is written by "y".
[tex]\displaystyle\\y = \sqrt{13^2 - 5^2}\\\\y = \sqrt{169 - 25}\\\\y = \sqrt{144}\\\\y = 12~\text{cm}[/tex]
Calculate the area:
[tex]\text{Area of triangle:}\\\\\boxed{\frac{\text{base}\times\text{height}}{2}}[/tex]
[tex]\displaystyle= \frac{10 \times 12}{2}\\\\= \frac{120}{2}\\\\= 60~\text{cm}^2[/tex]
Conclusion:
The area of an isosceles triangle with 10 cm length of base and 36 cm of its perimeter is 60 cm²
============================
Lesson Category:
(based of the Indonesian Curriculum)
Class: 8th grade of junior high schoolSubject: MathematicsLesson Category: Pythagorean TheoremLesson Code: 8.2.418. 19) The measure of angle c is . . . .
Jawaban:
D.75°
Penjelasan dengan langkah-langkah:
TENTUKAN PELURUS SUDUT 140°[tex] = 180° - 140° \\ = 40°[/tex]
TENTUKAN SUDUT C[tex]C = 180° - (65° + 40°) \\ C = 180° - 105° \\ C = 75°[/tex]
Semogamembantu!
19. ABCD is a trapezium. ABE is an isosceles triangle. Find 2AEB and ZEBC. A B 48° 70° D 80 C E
mudah-mudahan bisa membantu
20. (1)Maing Unknown AnglesIn the following figure, triangle LMO is an equilateral triangle andtriangle MNO is an isosceles triangle. Find ZMNOLM MN12]In the following figure, triangle PQT is an equilateral triangleTriangle PRS is an isosceles triangle. ZQPR = RPS = SPT. Find ZPRSTRS
Jawaban:
120⁰80⁰detail cara dan jawabannya seperti di foto ya.
semangat belajar....
#bintang5dan<3yaaa;))
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