Find the area of the rectangle with sides 5 cm and 7 cm.

Solution:

The area of a rectangle is calculated by multiplying its length by its width.

Given:

• Length \( l = 7 \) cm
• Width \( w = 5 \) cm

Formula for the area of a rectangle:

\[ A = l \times w \]\[ A = 7 \text{ cm} \times 5 \text{ cm} \]\[ A = 35 \text{ cm}^2 \]

Answer: The area of the rectangle is 35 cm².