please solve it as soon as possible
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verticle angle is 100⁰
let both equal angles of isosceles triangle x⁰
x⁰+x⁰+100⁰ = 180⁰(sum of angles of triangle is 180⁰)
2x⁰+100⁰ = 180⁰
2x⁰ = 180⁰-100⁰
2x⁰=80⁰
x⁰ = 80⁰/2
x⁰ = 40⁰
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the vertical angle is 100°.
100° + base angles = 180°
base angles = 80°.
so , each angle of the base angle
= 80/2
=40° each.
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