Question

lesson 1.1: practice

1. find the area of a square with each side length.

a) 7 units
b) 11 units

Explanation:

Part (a)

Step1: Recall the formula for the area of a square.

The area \( A \) of a square with side length \( s \) is given by the formula \( A = s^2 \).

Step2: Substitute \( s = 7 \) into the formula.

Substituting \( s = 7 \) into \( A = s^2 \), we get \( A = 7^2 \).

Step3: Calculate \( 7^2 \).

\( 7^2 = 7\times7 = 49 \).

Step1: Recall the formula for the area of a square.

The area \( A \) of a square with side length \( s \) is given by the formula \( A = s^2 \).

Step2: Substitute \( s = 11 \) into the formula.

Substituting \( s = 11 \) into \( A = s^2 \), we get \( A = 11^2 \).

Step3: Calculate \( 11^2 \).

\( 11^2 = 11\times11 = 121 \).

Answer:

The area of the square with side length 7 units is 49 square units.

Part (b)