Find the area of the trapezoid and the shaded area then subtract and u have ur answers
The perimeter is all the sides added up.
s1+s2+s3+s4= p
So, 12+ 6+ 8+ 17= the perimeter.
12+6+8+17 = 43
The answer is 43.
I hope this helps!
~cupcake
4.5 pounds
72 ounces
HOW-TO:
1. we know that 1 pound is 16 ounces.
So let's find how many of 16 are needed for 72.
72 ÷ 16 = 4.5
Use that answer and multiply it by the number of pounds per 16 ounces.
You get 4.5 pounds.
Each side of the square would be 80/4 = 20 cm. so its area = 20^2 = 400 cm^2.
Th rectangle will have perimeter = 80 = 2x + 2(x - 12) where x = height of the rectangle
4x = 80+24 = 104
so x = 26
area of rectangle = 26*(26-12) = 364 cm^2