Let's say that BC is x, so that AB is 4x, and AE = y.
The shaded area then is represented by 4xy/2 = 2xy.
The total area is represented by (4x+x)*y = 5xy.
The fraction of these is 2xy/5xy = 2/5.
Chocolatey107 is right!
Answer:
Step-by-step explanation:
Let CD = x
(x + 40)/2 = 31 The midline is 1/2 the sum of the 2 bases. multiply by 2 on both sides.
x + 40 = 31 * 2
x + 40 = 62 Subtract 40 from both sides.
x +40-40 = 62 - 40 Combine
x = 22
Check
(22 + 40)/2
62 / 2
31 = PQ
72x^2y and 18xy
GCF = 18xy
D=√(6-0)²+(2-10)²
d=√(6)²+(-8)²
d=√36+64
d=√100
d=10
4/5+18/x=8
18/x=8-4/5
18/x=36/5
90=36x
x=5/2
