Question

One angle of an isoscles triangle measure 104°. Which other angles could be in that isosceles triangle? Choose all that apply.

The options are 38°, 55°, 104°, and 41°. ​

Answer 1

38°

Explanation:

Since there cannot be two angles with measure 104°, the given angle must be the apex angle. Then the base angles are each ...

(180° -104°)/2 = 38°

The angles of the isosceles triangle are 38°, 38°, 104°. The only "other" angle is 38°.