Math, asked by revanth93, 9 months ago

In an isosceles triangle one of the base angles is 84°, then the angle at vertex is _________. * 84° 42° 12° 21°

Answers

Answered by Thoroddinson

1

Answer:

12

Step-by-step explanation:

As base angle in isosceles triangle are equal so

Vertex angle = 180-2×84 = 180-168 =12

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