Question

If one of the based angle of an Isosceles triangle is 50°.Find the 3rd triangle.

Answer 1

Answer:

80

Step-by-step explanation:

in the isosceles triangle two opposite angles are equal

let the third angle = x

∴ 50 + 50 + x = 180

= x = 180 - 100 = 80

therefore , x= 80

Answer 2

Answer:

The third angle is 80 degrees

Step-by-step explanation:

In isosceles triangle the base angles are equal.

So the bases angles are 50, 50

We know that the overall sum of the interior angles is 180

Let the third angle be x

50+50+x = 180

x = 80