Question

the town of oak manor measures 3.8 miles by 4.2 miles. solve for the total area. (1 point)
○ 15.96 mi²
○ 16 mi²
○ 8 mi²
○ 15.96 mi

Explanation:

Step1: Identify the shape and formula

The town is a rectangle (since it's measured by length and width), and the area of a rectangle is \( A = l \times w \), where \( l \) is length and \( w \) is width. Here, \( l = 4.2 \) miles and \( w = 3.8 \) miles.

Step2: Calculate the area

Substitute the values into the formula: \( A = 3.8 \times 4.2 \).
Calculating \( 3.8 \times 4.2 \):
\[

$$\begin{align*} 3.8\times4.2&=(4 - 0.2)\times4.2\\ &=4\times4.2-0.2\times4.2\\ &=16.8 - 0.84\\ &= 15.96 \end{align*}$$

\]
The unit for area is square miles, so the area is \( 15.96\ \text{mi}^2 \).

Answer:

A. \( 15.96\ \text{mi}^2 \)