Question

the vertical angle of an isoceless Triangle
is twice the sum of its base angles. find
the angles.​

Answer 1

Answer:

90 ∘

Step-by-step explanation:

Since the sum of the interior angles of any triangle adds up to 180 ∘ and also the base angles of an isosceles triangle are equal,we may let the base angles be x , then the vertex angle is 2 x

∴ x + x + 2 x = 180 ∘

∴ x = 45 ∘

Therefore the vertex angle is 90 ∘