Question

In triangle abc angle a - angle b=15 and angle b + angle c=105 find measure of angle a,angle b and angle c

Answer 1

let have a triangle ABC with angle A + Angle B + angle C is equal to 180 as it is property of triangle As given Angle B Plus angle C is equal to 180 putting this value in triangle angle A + Angle B + angle C is equal to 180 we get angle is equal to 75
$so \: we \: get \: angle \: b \: 60and \: angle \: c \: 45$