Composite Area

What is the area of the bottom triangle?

(Don't include the units)

(a)  

Tags

CCSS.6.G.A.1

Which equation can be used to find the area of the composite figure shown?

• = 8(15) + ½(15×7) + ½(9×8)

• = 8(15) + 15(7) + 9(8)

• = 24(8) + ½(15×7)

• = 15(15) + ½(9×8)

Tags

CCSS.3.MD.C.7D

Which of the following equations could NOT be used to find the area of the figure shown?

• A = 10(15) - 3.75(2.5)(5)

• A = 15(10) - 2.5(5) - 3.75(5)

• A = 15(10) - [2.5(5) + 3.75(5)]

• A = 2(10)(5) + 5(3.75)

Tags

CCSS.3.MD.C.7D

Mason needs to purchase new glass for the window pictured here.  About how many square feet of glass will he need to purchase? 

• 20 ft²

• 13 ft²

• 26 ft²

• 41 ft²

The figure shows a circle inside a triangle.  Which equation could be used to find the area of the shaded region?

• = ½bh - 2πr

• = πr² - ½bh

• = ½bh - πd

• = ½bh - πr²

Tags

CCSS.7.G.B.4

At a restaurant, a waiter pushed 4 identical square tables together as shown in the diagram. The width of each table is 5 feet.  Which of the following methods could the waiter use to   determine the total serving area created by the 4 square tables?

• Multiply 5 by 5, then multiply the product by 4.

• Multiply 5 by 5, then multiply the product by 5.

• Add 4 plus 4, then multiply the sum by 5.

• Multiply 4 by 5, then add 4 to the product.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

A local restaurant places tissue-paper liners in baskets for yeast rolls like the liner pictured.
About how many square centimeters of tissue paper are needed to make one liner?

• 200.96 cm²

• 379.2 cm²

• 251.2 cm²

• 253.6 cm²

The model of the backboard of a basketball goal shown on your recording sheet is composed of a rectangle and a semicircle.  Use a ruler to measure the dimensions of the model to the nearest half inch.
Which measurement is closest to the area of the model of the backboard in square inches?

• 18.56 in.²

• 31.12 in.²

• 12.28 in.²

• 23.56 in.²

Which procedure should be used to find the area of the shaded region?

• Subtract the perimeter of the trapezoid from the area of both circles.

• Subtract the circumference of both circles from the area of the trapezoid.

• Subtract the area of the trapezoid from the area of both circles.

• Subtract the area of both circles from the area of the trapezoid.

Tags

CCSS.3.MD.C.7D

Which of the following is closest to the area of the figure shown?

• 420 cm²

• 521 cm²

• 320 cm²

• 1,124 cm²