Answer:
Square
Step-by-step explanation:
Squares are quadrilaterals
Squares have two sets of parallel sides
Squares have four right angles
Squares sides are all congruent.
"one half" =

Your problem becomes this but you don't have to do this method to solve this problem:

. So,
Given:
QSR is a right triangle.
QT = 10
TR = 4
To find:
The value of q.
Solution:
Hypotenuse of QSR = QT + TR
= 10 + 4
= 14
Geometric mean of similar right triangle formula:


Do cross multiplication.


Switch the sides.

Taking square root on both sides.

The value of q is
.
Answer:
x=28
Step-by-step explanation:
degrees of a triangle is always 180
2x+3x=5x
5x - 10 + 50
5x + 40
180 - 40 = 140
5x = 140
140/5 = 28