Question

In an isosceles triangle the vertical angles 4/5 of the sum of base What is the measurements of the vertical angles?​

Answer 1

Step-by-step explanation:

Consider each base of an isosceles triangle=x

Vertical angle =3(x+x)=3(2x)=6x

In a triangle

6x+x+x=180

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By further calculation

8x=180

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x=180/8=22.50

Therefore, each base angle =22.50 and vertical angle =3(22.5+22.5)=3×45=135

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