Question

I
4 Two angles of a triangle are 128° and 26°.
Explain why the triangle must be isoceles​

Answer 1

Answer:

Step-by-step explanation:

Please refer to the answer in the attachment.

Answer 2

Given,the two angles are 128° and 26°

And also given it's a triangle

we know that, sum of 3 sides in a triangle = 180°

So 128 + 26 + third angle = 180°

154 + third angle = 180°

third angle = 180°-154°

third angle = 26°

So the three angles are 128,26,26

Isosceles triangle - Either two sides or angles of a triangle are same

Here, 26 and 26 are same

So hence it's a isosceles triangle