Question

is this triangle isosceles? triangle with sides 10, 10, 7 yes no

Explanation:

Step1: Recall isosceles triangle definition

An isosceles triangle has at least two equal - length sides.

Step2: Check the triangle's side lengths

The given triangle has side lengths 10, 10, and 7. We can see that two of the sides have a length of 10, which means there are at least two equal - length sides.

Answer:

yes