Question

Which choice below best describes the triangle at the left?

Acute scalene
Right scalene
Acute isosceles
Obtuse isosceles
Obtuse scalene

Answer 1

Acute isosceles.

Explanation:

The third angle = 180 - 70 - 40

= 70 degrees.

All angles are less than 90 degrees so it is acute.

" angles are 70 degrees so it is isosceles.