Please help me with this I will give out extra points with the brain this math question 5/5 image below.

3 ft

Step-by-step explanation:

a^2 + b^2 = c^2a and b are the legs and c is the hypotenuse

4^2 + b^2 = 5^2

16 + b^2 = 25

b^2 = 25 - 16

b^2 = 9

b = sqrt 9

b = 3 <== vertical height is 3 ft

i believe it is B : 4.5

Step-by-step explanation:

i did division and i got 1.15 so then i started adding and some subtracting and i got 4.5 and i looked and saw it was one of the answers! i hope this is correct!

have a wonderful day!!!

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2