Question

in an isosceles triangle , a base angle is 4 times itd vertical angle . find all the angles of triangle .​

Answer 1

Answer:

Hope it helps you

Step-by-step explanation:

In an isosceles triangle ABC,AB=AC

Base angles are equal

Let ∠B=∠C=x

∠A=

4

x

∴x+x+

4

x

=180

∘

⇒

4

4x+4x+x

=180

∘

⇒

4

9x

=180

∘

⇒x=180

∘

×

9

4

=80

∘

Vertical angle=

4

x

=

4

80

∘

=20

∘

Angles of the triangles will be 80

∘

,80

∘

,20

∘

Answer 2

Step-by-step explanation:

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