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Question

1-Find the perimeter and area of a square with side 9 inches?
2-Find the perimeter and the area of a rectangle with width 3 meters and length 11 meters.
3-The sum of two angles in a triangle totals 117 degrees, what is the measure of the third angle?
4Twices the area of a square is 72 square miles. what is the length of each side of the square?

Answer 1

#1 perimeter is 9X4=36 inches

area is 9X9=81 square inches

#2 perimeter is (2X3)+(2x11)=6+22=28 meters

area is 3 x 11 = 33 square meters

# 3 third angle is 180-117=63 degrees.

# 4 twice the area is 72 square miles

so the area is 36 square miles

the length of the side of the square is square root of 36 which is 6 miles

Answer 2

1- The perimeter for a square is 4 times is side so 36". The area is 9 squared so 81
2- For a rectangle, the perimeter is again the sum of the side or 2*11 + 2*3 = 28 meters. The area is 33 squared meters.
3- The sum of a triangles angles is always equal to 180, so the third angle is 63 degrees.
4-the area is then of 36, so squareroot of 36 is 6, which is the side lenght

Answer 3

Question 1
P = 4 x 9 = 36 inches
A = 9 x 9 = 81 in²

Question 2
P = 6 + 22 = 28 m
A = 3 x 11 = 33 m²

Question 3
3rd angle = 180 - 117 = 63°

Question 4
Area = 36 miles²
Side length = 6 miles

Answer 4

1) area = 9(9) = 81
. . . . perimeter = 6(9) = 54
2) area = 3(11) = 33
. . . . perimeter = 2 [ 3(11)] = 66
3) . . 3rd angle =190 - 117 = 63
4) . . 2 A = 72
. . . A =36
side = sqr(36) = 6 miles