1.

in a triangle abc angle A is 25 degree more than Angle B and angle C is 10 degree less than Angle B what are the angle of the triangle

Answer»

Hey!!!!

let angle B be x

Then ATQ,

angle A = x + 25
=> angle C = x - 10

We KNOW angle A + angle B + angle C = 180°

=> x + x + 25 + x - 10 = 180
=> 3x = 165
=> x = 55

Thus angle B = 55°
angle A = 55 + 25
=> angle A = 80°
=> angle C = 55 - 10
=> angle C = 45°

Hope this helps


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