Question

triangle DEF is an equilateral triangle.

Answer 1

The answer is B because it can’t be c or d and the bottom is 12 so it can’t be that

Answer 2

In an equilateral triangle, each angle of 60 degrees. Then the value of x is 20.8 units, then the correct option is B.

What is trigonometry?

Trigonometry deals with the relationship between the sides and angles of a triangle.

The triangle ΔDEF is an equilateral triangle.

Then each angle is 60 degrees.

Then by the sine rule, we have

$x = 24 \times \sin 60^o \\\\x = 24 \times 0.866\\\\x = 20.78\approx 20.8$

The value of x is 20.8 units.

More about the trigonometry link is given below.

https://brainly.com/question/22698523