Question

the vertical angle of an isosceles triangle is 100°. find its base angles

Answer 1

hey,
let the base angles be x.
100°+x+x=180°
2x=180°-100°
x=80/2
x=40°[ans]
hope it helps. ^_^

Answer 2

Sum of angles of traingle = 180°

Base angles are equal in Isosceles Triangle

Let one base angle be x°


USING EQUATION,

100° + x + x = 180°
100° + 2x = 180°
2x = 180° - 100°
2x = 80°
x = 40°


ANSWER = BASE ANGLES = 40° & 40°


HOPE IT HELPS :):):):)
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