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Step-5

Title: Squares

Grade: 8-a Lesson: S2-L7

Explanation: Let us verify the answer here with the steps.

Description:

Explanation	Answer
Problem	A park shaped like a square with a side of 45 meters has an alley with the width of 3 meters. What’s the area of the blue zone?
Formula used	\$"Area of Square" = "side" \times "side"\$ \$"Area of Rectangle" = "lenght" \times "width"\$
Step - 1	The side of a square = 45 m
Step - 2	The area of the park = \$45 \times 45 = 2025 m^2\$ [∵ \$"Area of Square" = "side" \times "side"\$]
Step - 3	The alley is shaped like a rectangle with a length of 45 m and a width of 3 m. \$"Area of Rectangle" = "lenght" \times "width"\$ Area = \$45 \times 3 = 135 m^2\$
Step - 4	The blue zone has an area of \$2025 - 135 = 1890 m^2\$
Step - 5	Hence,the area of blue zone is \$1890 m^2\$

Explanation

Answer

Problem

A park shaped like a square with a side of 45 meters has an alley with the width of 3 meters. What’s the area of the blue zone?

Formula used

\$"Area of Square" = "side" \times "side"\$

\$"Area of Rectangle" = "lenght" \times "width"\$

Step - 1

The side of a square = 45 m

Step - 2

The area of the park = \$45 \times 45 = 2025 m^2\$

[∵ \$"Area of Square" = "side" \times "side"\$]

Step - 3

The alley is shaped like a rectangle with a length of 45 m and a width of 3 m.

\$"Area of Rectangle" = "lenght" \times "width"\$

Area = \$45 \times 3 = 135 m^2\$

Step - 4

The blue zone has an area of \$2025 - 135 = 1890 m^2\$

Step - 5

Hence,the area of blue zone is \$1890 m^2\$