Question

how to find the the third angle of the triangle

Answer 1

heyy mate!!

▶if another 2 angles are given then after subtracting sum of two angles from 180° you will get third angle of triangle.

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✌❤hope it helps♥✌

Answer 2

if two angles are given then u can find the third angle by using the ANGLE SUM PROPERTY of a triangle i.e. the sum of all angles of a triangle is 180°.
let x be the angle to be found and a and c are known angles the we have,
a + c + x = 180°
therefore x = 180 - a - c
x = 180 - (a+c).