Answer:
1) WV = 22
2) x =87
3)b = 24
Explanation:
1) This is a mid segment of a triangle because it connects the midpoints of two sides of a triangle. This segment is always parallel to the third side, and is half the length of the third side.
SU = 1/2 WV
WV = 2*SU =2 *11 = 22
2) The same thing as in 1)
VU = 2*RT
x+13 = 2(x-37) distribute
x+13 =2x -74 subtract x on each side
13 = 2x-x -74 combine like terms
13 = x-74 add 74 on each side
13+74 = x
x =87
3) ΔSTU is isosceles so height divide base into 2 equal parts so UV=VS
b+24 = 2b subtract b on each side
24 = 2b-b
b = 24