Question

14. The vertical angle of an isosceles triangle is 30° more than each of its base angles. Find
all the angles of the triangle.​

Answer 1

Step-by-step explanation:

let the base angles be x

then the vertical angle= x +30

2x + x +30 = 180

3x +30 = 180

3x = 180 -30

3x = 150

x = 150 /3

x = 50

the base angles = 50° , 50°

the vertical angles = x + 30 = 50° + 30°

= 80°

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