Question

in a right angle triangles one angle is 30 degrees find the third angle

Answer 1

the third angle is 60°

Answer 2

let abc is an right angled triangle
then , angle B = 90 And Angle C= 30 ( given )
so the sum of a triangle is 180°
let the third angle A is x
now by sum of a triangle property .
angle X + Angle B + Angle C = 180°
X + 90° + 30° = 180°
X = 180° - 120°
X = 60° is the answer