We included **HMH Into Math Grade 4 Answer Key**** PDF** **Module 9 Review **to make students experts in learning maths.

## HMH Into Math Grade 4 Module 9 Review Answer Key

**Vocabulary**

base

height

Question 1.

Draw and label a rectangle using the terms in the vocabulary box.

Answer:

**Concepts and Skills**

Question 2.

**Use Tools** Max is marking off a rectangular section of the gym floor to practice bowling. The section has an area of 48 square meters and a length of 8 meters.

What is the width? Tell what strategy or tool you will use to answer the question, explain your choice, and then find the width.

Answer:

Given,

Area of Section = 48 square meters

Length = 8 meters

We know, Area of Rectangle = Length X Width

So, 48 = 8 X Width

Width = 48/8 = 6

Therefore, Width of the section is 6 meters.

Question 3.

What is the area of the shaded part of the rectangle?

A. 31 sq yd

B. 53 sq yd

C. 59 sq yd

D. 109 sq yd

Answer:

B. 53 sq yd

Total area = Length X Width = 12 x 7 = 84 square yards

Area of small section = Lenth X Width = 2 X 3 = 6 square yards

Area of large section = Length X Width = 5 X 5 = 25 square yards

Area of shaded part = Total area – area of small section and large section

= 84 – ( 6 + 25 ) = 53

Therefore, Area of shaded part = 53 Square yards

Question 4.

Shana is building a deck around a tree. She will cut a square space for the tree that has a side length of 3 feet. The deck will be a rectangle that measures 10 feet by 12 feet. What is the area of the deck?

__________

Answer:

Total area of deck = Length X Width = 10 X 12 =120 square feet

Area of square space = Side X Side = 3 X 3 = 9 square feet

Area of remaining deck = 120 – 9 = 111 square feet

Therefore, area of Deck = 111 square feet.

**Find the area of the shaded part of the figure.**

Question 5.

Area = ____

Answer:

Area of shaded part = Base X Height = 6 X 14 = 84 square cm

Question 6.

Area = ____

Answer:

Area of top portion = Base X Height = 2 X 6 = 12 square feet

Area of bottom portion = Base X Height = 5 X 3 = 15 Square feet

Total Area = 12 + 15 = 27 square feet.

Question 7.

Area = ____

Answer:

Area of Square = Side X Side = 5 X 5 = 25 Square inches.

Question 8.

Area = ____

Answer:

Total area = Base X Height = 6 X 8 = 48 Square yards

Unshaded Area = Base X Height = 3 X 4 = 12 Square yards

Remaining area = 48 – 12 = 36 square yards

Therefore, Total area = 36 square yards.

Question 9.

Use the perimeter formula, P = 2 × 1 + 2 × w, to find the unknown measure.

A. n = 3 m

B. n = 4 m

C. n = 42 m

D. n = 360 m

Answer:

A. n = 3 m

Given, perimeter = 30m

From perimeter formula, 2 X (n + 12m) = 30m

n + 12m = 15m

n = 15m – 12m = 3m

Therefore, n = 3m