Given measure of an angle is 2/3 of it's complimentary angle. The measure of that angle is
1. 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]
2. Angle A is equal to 3/5 of full turn , the kind of angle A is …. *A.Obtuse angleB.Reflex angleC.A cute angleD.Right angle
Jawaban:
a. obtuse angle
Penjelasan dengan langkah-langkah:
maaf kalau salah
Jawaban:
A.Obtuse angle
Penjelasan dengan langkah-langkah:
S3moga membantu
3. . The angle of half circle is ...
The angle of a half circle is 180°.
[tex]\\[/tex]
EXPLANATIONA circle has an angle of 360°. Cut it in half and you would get two half circles with each one of them has an angle of 180°. Cut one in half and you would get two quarter circles. We know that a quarter circle has an angle of 90°.
So, with basic arithmetic we can find the solution to the problem; The angle of a half circle is a hundred and eighty degrees (180°) because three hundreds and sixty, which is the angle of a circle in degrees, divided by two is equal to a hundred and eighty (360/2 = 180).
[tex]\\[/tex]
LEARN MORESome math problems involving circles:
brainly.co.id/tugas/21577450[tex]\\[/tex]
SOLUTION DETAILSMapel: Matematika
Kelas: 8
Materi: Lingkaran
Kode: 8.2.7
4. 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
5. 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!
6. The angle of a triangle are (x-35 ) ,(x-25) and (1/2 x-10 ) what is the largest angle of the triangle
sum of angles = 180°
x-35 + x-25 + 0.5x-10 = 180°
2.5x - 70 = 180°
2.5x = 250
x = 100
angle 1 => 100 - 35 = 65°
angle 2 => 100 - 25 = 75°
angle 3 => 50 - 10 = 40°
May it favours you :)
7. explain the angle of my heart and the angle of the edge?
Jawaban:
artinya : jelaskan sudut hatiku dan sudut tepi?
Penjelasan dengan langkah-langkah:
jangan lupa di follow ya
8. What is happening to the number of reflection as the angle of the mirror is reduced
Jawaban:
apa yg akan tejadi dengan jumlah pantulan ketika sudut cermin dikurangi
9. When there is triangle ABC, the angle A is 55 and angle C is 60. What is the size of angle B? 75'65'55'85'
Jawaban:
triangle is a 180° shape
So if we use that assumption then
180 - 55 - 60 = 65°
So angle B's size is 65°
THE ANSWER IS B
10. the size of angle is.......... degree
Jawaban:
berikut ini yang bukan merupakan bagian haya sama pa
11. 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
12. a wooden board is shaped right angled triangle of which the length of the right angle is 13 cm and40 cm. the area of the wooden board is
Jawab:
13*40:2
13*20
=260 m²
semoga membantu
Jawab:
260 cm²
Penjelasan dengan langkah-langkah:
sisi saling tegak lurus siku2 berarti alas dan tinggi
maka L = 1/2*a*t
=1/2 *13 cm * 40 cm
= 1/2 * 520 cm²
=260 cm²
maaf kalau salah
no copas
13. A person, standing on the bank of a river, observes that the angle of elevation of the top of a tree on the opposite bank to be 48º.When he walks 30 away from the bank, he finds the angle of elevation of the top of the treeto be 36º.If the height of the person is 1.8 m, find the height of the tree and the width of the river.(HINT: angle of elevation is angle formed by horizontal line and eyesight to the top of thetree.
Jawaban:
angel is here you in there
14. 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
15. The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is:
The length of the ladder
= 4,6 / cos a
= 4,6 / cos 60°
= 4,6 / (1/2)
= 4,6 . 2
= 9,2 m
Kelas 10 Matematika
Bab 6 Trigonometri Dasar< = 60°
x = 4,6 m
r = ...?
cos 60° = x/r
1/2 = 4,6/r
r = 4,6 / 1/2
r = 4,6 × 2
r = 9,2 m
so the length of the ladder is 9,2 m
16. NOT TO SCALE 58 m In the diagram, BC is a vertical wall standing on horizontal ground AB D is the point on AB where AD 58 m. The angle of elevation of from A is 26°. The angle of elevation of from D is 720 (n) Show that AC 76.7 m, connect to I decimal place, [3] (b) Calculate BD [5]
yaua jabusisa duisinwa dibna1
17. If the size of the angles of triangle are 3x°,4x°,5x°.the smallest angle of the triangle is
Jawaban Master Teacher
12x = 180°
x = 15°
smallest angle
3x = 45°18. yg bisa bantuin yakk.. the sum of the three angles of triangle is 180degree. the sum of the angle is equal to the third angle and the difference of the two angles is equal to 2/3 the third angle. find the angles of this triangle
Misalkan sudut A,B,C
A=B
A+B=⅔C
A+B+C=180
1:1:3=180
maka
2A+3A=180
5A=180
A=180/5
A=36
A+B+C=180
36+36+C=180
C=180-72
C=108
Jadi sudut A=36, B=36 dan C=108
19. the size of angle is.....degreen
Jawaban:
160
Penjelasan:
sorry if the answer is wrong
20. 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??
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