Area of Quadrilaterals

Answer explanation

True: Since all sides of a square are equal, we multiple the number by itself.

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Answer explanation

True. This formula is found on the STAAR chart.

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Answer explanation

True: This formula is on the STAAR chart.

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Answer explanation

False: That formula is only used for rectangles and parallelograms.

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

A rectangular living room is getting new wood floors. The living room measures 18 feet by 13 feet. What is the total area?

Answer explanation

Shape: rectangle

Formula: A=bh

Plug it In: A = 13 * 18

Solve: 234 square feet

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

Which of the following figures have the same area?

• Figures I and II

• Figures II and II

• Figures I and III

• None of the above

Answer explanation

Figure I:

Shape: Rectangle

Formula: A=bh

Plug It In: A = 5.8 * 2

Solve: 11.6

Figure II:

Shape: Parallelogram

Formula: A=bh

Plug It In: A = 2.9 * 4

Solve: 11.6

Figure III:

Shape: Square

Formula: A = bh

Plug It In: A = 3.7 * 3.7

Solve: 13.69

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

A bright blue parallelogram is painted on a playground. It has a height of 16 feet and a length of 23 feet. What is the area?

Answer explanation

Shape: Parallelogram

Formula: A = bh

Plug It In: A = 16 * 23

Solve: 368 square feet

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

The area of an NBA basketball court is 4,700 square feet. The width of the court is 50 feet. What is the length of the court?

Answer explanation

Shape: Rectangle

Formula: A = bh

Plug it In: 4,700 = 50h

Solve: 94 feet

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

CCSS.3.OA.A.3

CCSS.3.OA.A.4

CCSS.3.OA.B.6

Ms. Brack wants to hang a bulletin board with polka dot paper. The bulletin board is 3.5 feet long and 2.5 feet wide. How much polka dot paper will she need to cover the board?

• 1.4 square feet

• 6 square feet

• 8.75 square feet

• 875 square feet

Answer explanation

Shape: Rectangle

Formula: A=bh

Plug It In: A = 3.5 * 2.5

Solve: 8.75 square feet

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

Compare the areas below. Which figure has a greater area?

Answer explanation

Figure I: Rectangle

Formula: A = bh

Plug It In: A = 12.5 * 8

Solve: 100

Figure II: Parallelogram

Formula: A = bh

Plug It In: A = 10 * 6

Solve : 60

The rectangle has a greater area because 100 is greater than 60.

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6