Formulas
What is the perimeter formula for a rectangle?
1. P = L + L + W + W OR, P = 2L + 2W
2. P= L X W
P = L + L + W + W OR, P = 2L + 2W
A rectangle has a length of 8 cm and a width of 5 cm. What is the perimeter of this rectangle?
p = 2L + 2W= p = 2(8) + 2(5) p = 16 + 10 p= 26cm2
A rectangle has a length of 8 inches and a width of 5 inches. What is the area of this rectangle?
A = lw A = (8)(5) A = 40 inches squared
A parallelogram has a base of 6 feet and a height of 4 feet. What is the area of this parallelogram?
A = Base x Height A = (6)(4) A = 24 feet squared
A parallelogram has a base of 9 meters and height of 6 meters. What is the area of the parallelogram?
A = bxh = 9x6 = 54 meters squared
Who is the head boys basketball coach here at Wilbur Middle School?
Coach VanMetre
What is the area formula for a rectangle?
1. Area = length x height OR, A = lh
2. Area = length x width OR, A = lw
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 = 2L + 2W p = 2(18) + 2(13) p = 36 + 26 p = 62 cm
A rectangle has a length of 18 cm and a width of 13 cm. What is the area of this rectangle?
A = lw A = (18)(13) A = 234 cm
A parallelogram has a base of 14 feet and a height of 7 feet. What is the area of this parallelogram?
A = bh A = (14)(7) A = 98 feet squared
A parallelogram has a base of 24 km and a height of 14 km. What is the area?
A = bxh = 24 X 14 = 336 km2
What is one of Ms. VanSteenburg's favorite college football team?
Texas Longhorns
What is the area formula for a parallelogram?
Area = base x length A = bl
Area = base x height A = bh
Area = base x height 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 = 2L + 2W p = 2(8.6) +2(5) p = 17.2 + 10 p = 27.2 m
A rectangle has a length of 8.6 m and a width of 5 m. What is the area of this rectangle?
A = lw A = (8.6)(5) A = 43 meters squared
A parallelogram has a base of 7.8 feet and a height of 3 feet. What is the area of this parallelogram?
A = bh A = (7.8)(3) A = 23.4 feet squared
A parallelogram has a base of 3.5 cm and a height of 9 cm. What is the area?
A = bxh = 3.5 x 9 = 31.5cm2
What is Wilbur's mascot?
Wranglers
What shape is this formula for 2L+2W?
The perimeter of a Rectangle
The perimeter of Spongebob's house
The 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?
p = 2L + 2W p = 2(24.8) + 2(12.78) p = 49.6 + 25.56 p = 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?
A = lw A = (24.8)(12.78) A = 316.944
A parallelogram has a base of 13.8 yards and a height of 4.2 yards. What is the area of this parallelogram?
A = bh A = (13.8)(4.2) A = 57.96 square yards
A parallelogram has a base of 152 mm and a height of 111 mm. What is the area?
A = bxh = 152x111=16872mm2
How many kids does Ms. Vansteenburg have?
two
There are two formulas for area that we have learned so far. What are they?
BxH and LxW
BxW and BxL
BxH and LxW
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.
A= Scooby Doo's van
A = LW P = 2L + 2W 24 = 8W P = 2(8) + 2(3) 3 = W P = 16 + 6 p = 22 cm
A rectangle has an area of 54 inches squared and a width of 6 inches. What is the length of the rectangle?
A = LW 54 = L(6) solve for the variable 9 inches = L
A parallelogram has an area of 45 square inches and a base of 5 inches. What is the height of this parallelogram?
A = bh 45 = (5)h 9 inches = h
The base of a parallelogram is 123mm and the height is 42cm. What is the area?
A = bxh = 123x42=5166 mm2
On what day of the week is Halloween?
Thursday