Question

An angel of a triangle is greater 20° from second angle and smaller than third angle find the measurement of third angle
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Answer 1

Step-by-step explanation:

let the second angle be x

so, the first angle = x+20°

let the third angle also be x

=x+x+x+20°= 180°

=3x+20°=180°

3x=180°-30°

3x=150°

x=150°/3

x=50°

first angle = x +20°= 50°+20°

= 70°

second angle = x=50°

third angle =x=50°