Formulas
What is the perimeter formula for a rectangle?
Possible answers include
p = L + L +W +W (add up all the sides)
P = 2L + 2W
P = 2(L + W)
A rectangle has a length of 8 cm and a width of 5 cm. What is the perimeter of this rectangle?
p= 26cm or 26 cm
A rectangle has a length of 8 inches and a width of 5 inches. What is the area of this rectangle?
40 in2
A parallelogram has a base of 6 feet and a height of 4 feet. What is the area of this parallelogram?
24 ft2 or 24 feet2
How many sides does a parallelogram have?
4
What is the area formula for a rectangle?
Area = length x width OR A = lw
A rectangle has a length of 18 cm and a width of 13 cm. What is the perimeter of this rectangle?
p= 62 cm or
62cm
A rectangle has a length of 18 cm and a width of 13 cm. What is the area of this rectangle?
234 cm2
A parallelogram has a base of 14 feet and a height of 7 feet. What is the area of this parallelogram?
98 ft2 or 98 feet2
What is Mrs. Wright's favorite subject to teach?
Math - of course!
What is the area formula for a parallelogram?
Area = base x height or A = bh
A rectangle has a length of 8.6 m and a width of 5 m. What is the perimeter of this rectangle?
p = 27.2 m or
27.2m
A rectangle has a length of 8.6 m and a width of 5 m. What is the area of this rectangle?
43 m2
A parallelogram has a base of 7.8 feet and a height of 3 feet. What is the area of this parallelogram?
23.4 ft2 or 23.4 feet2
How many sides does a triangle have?
3
Is the formula 2xL+2xW for the area of a rectangle or the perimeter of a rectangle
perimeter of a rectangle
A rectangle has a length of 24.8 inches and a width of 12.78 inches. What is the perimeter of this rectangle?
75.16 inches
A rectangle has a length of 24.8 inches and a width of 12.78 inches. What is the area of this rectangle?
316.944 inches2
or 316.944 in2
A parallelogram has a base of 13.8 yards and a height of 4.2 yards. What is the area of this parallelogram?
57.96 yds2 or 57.96 yards2
Which college does Mrs. Wright love?
Michigan State
Go Green!
There are two formulas for area that we have learned so far. What are they?
A = BH or area= base times height
and
A = lw or area = length times width
A rectangle has an area of 24 square cm and a length of 8 cm. What is the perimeter of this rectangle? **Hint: calculate the width first and then calculate the perimeter.
22 cm
A rectangle has an area of 54 inches squared and a width of 6 inches. What is the length of the rectangle?
9 inches or
9 in
A parallelogram has an area of 110 square inches and a base of 5 inches. What is the height of this parallelogram?
22 inches or 22 in
Without using Google or any other search engine:
How many sides does a nonagon have?
9