Question

Find DE. A. 3.53 B. 7 C. 7.06 D. 14.12

Answer 1

To solve the problem shown above it is important to know the following information:

 As you can see in the figure attached, the triangle has two equal angles. The triangles is an "Isosceles Triangle". By definition, an Isosceles triangle has two equal sides too, therefefore, is CD has the length of 7.06, the lenght of DE is 7.06.

 Therefore, you can conclude that the answer is the option C: C.7.06

Answer 2

The triangle shown above is an isosceles triangle. it is a property of isosceles triangle that the sides opposite to the base angles are congruent.

So that means the segment DE is also 7.06

Hope this helps :)