1) a. OSL
2) i think is b. linear pair
3) d.vertical angles
An isosceles triangle has two congruent sides and angles
The value of x in the isosceles triangle is
<h3>How to determine the value of x</h3>
To calculate the value of x, we make use of the following Pythagoras theorem
So, we have:
Evaluate the squares
Evaluate the exponent
Hence, the value of x is 5
Read more about isosceles triangles at:
brainly.com/question/1475130
The answer is 56 square meters