Question

A triangle has side lengths 4 cm, 4 cm, and 7.5 cm. The angle measures are 20°, 20°, and 140°.

What type of triangle is this triangle?

A: acute scalene
B: obtuse scalene
C: obtuse isosceles
D: acute isosceles

Answer 1

D

Explanation:

Because two side lengths are identical it is an isosceles triangle and also at least one angle is less than 90 degrees so the answer would be an acute isosceles triangle.

Answer 2

The answer would be C. Obtuse Iscosceles