Answer:
10m
Step-by-step explanation:
Use the formula,
A=H B B/2
2x 100/20=10m
10 m
LOOK AT YOUR ANSWER IN PICTURE
B. 3 to 2
I calculated it logically
x=4
4x - 3 = 2x + 5
4x - 2x = 5 + 3
2x = 8
x = 8/2
x = 4