Question

19 )Q19. One angle of a right-angled
triangle is 70°, find the other acute
angle.
1.0 Marks
90°
110°
20°
45°​

Answer 1

let a right triangle is ABC

so, A = 70⁰ , B = 90⁰ and C =?

to find, C

angle A + Angle B + angle C = 180⁰

A + B + C = 180⁰

70 + 90 + C = 180⁰

160 + C = 180⁰

C = 180 - 160

C = 20⁰