Question

name: ____________________ find the perimeter by adding all the side measurements. a. 2 ft. 7 ft. rectangle b. 8 in. square c. 1 in. 7 in. rectangle d. 4 m 3 m rectangle mathworksheets.com week of september 1

Explanation:

For Figure A:

Step1: Identify the shape and sides.

This is a rectangle with length \( l = 7 \, \text{ft} \) and width \( w = 2 \, \text{ft} \). The formula for the perimeter of a rectangle is \( P = 2(l + w) \).

Step2: Substitute the values.

Substitute \( l = 7 \) and \( w = 2 \) into the formula: \( P = 2(7 + 2) \).

Step3: Calculate the sum inside the parentheses.

\( 7 + 2 = 9 \).

Step4: Multiply by 2.

\( 2\times9 = 18 \).

Step1: Identify the shape and sides.

This is a square with side length \( s = 8 \, \text{in} \). The formula for the perimeter of a square is \( P = 4s \).

Step2: Substitute the value.

Substitute \( s = 8 \) into the formula: \( P = 4\times8 \).

Step3: Calculate the product.

\( 4\times8 = 32 \).

Step1: Identify the shape and sides.

This is a rectangle with length \( l = 7 \, \text{in} \) and width \( w = 1 \, \text{in} \). The formula for the perimeter of a rectangle is \( P = 2(l + w) \).

Step2: Substitute the values.

Substitute \( l = 7 \) and \( w = 1 \) into the formula: \( P = 2(7 + 1) \).

Step3: Calculate the sum inside the parentheses.

\( 7 + 1 = 8 \).

Step4: Multiply by 2.

\( 2\times8 = 16 \).

Answer:

\( 18 \, \text{ft} \)

For Figure B: