The area of a trapezoid is found using what formula?
A= 1/2(b1 + b2)h or A= (b1 + b2)h /2
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15
The area of a parallelogram is found using what formula?
A=bh
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20
Ms. Summers wants to wallpaper a wall in Addie's room. The wall is 15 feet long and 10 feet tall, and has two windows that are each 3 feet wide and 4 feet tall. If she buys 135 square feet of wallpaper, how much will she have left over?
9ft²
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15
How is the area of a composite figure found?
Find the area of each shape and ADD.
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seesaw
Swap points!
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seesaw
Swap points!
Okay!
fairy
Take points!
5
10
15
20
25
baam
Lose 20 points!
Oops!
20
Mrs. Chapman baked a tray of brownies for the family in a rectangular dish that measured 10in by 12 in. If each brownie is a 2in square, how many brownies has she made?
30 brownies
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thief
Give points!
5
10
15
20
25
rocket
Go to first place!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 10 points!
Oops!
20
(Assuming the top is square) Find the area:
49cm²
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15
Find the area:
180units²
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10
The area of a shape is always measured using...
Units Squared/ Square units
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15
The area of a square is found using what formula?
A=s²
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15
Izzy wants to plant flowers in a flower bed in the shape of a parallelogram. The height of the flower bed is 7ft. If she has a packet of seeds that will cover 63 square feet, what is the longest base her parallelogram could have?
