Question

cu 3-138. (from lessons 1.2.1, 1.3.3, and 1.3.4) calculate the area and perimeter of the following rectangle. 1.857 9.446

Explanation:

Step1: Calculate the area of the rectangle

The formula for the area \( A \) of a rectangle is \( A = \text{length} \times \text{width} \). Here, the length is \( 9.446 \) and the width is \( 1.857 \). So we calculate \( 9.446 \times 1.857 \).
\( 9.446\times1.857 = 17.541222 \)

Step2: Calculate the perimeter of the rectangle

The formula for the perimeter \( P \) of a rectangle is \( P = 2\times(\text{length} + \text{width}) \). Substituting the values of length (\( 9.446 \)) and width (\( 1.857 \)) into the formula, we first find the sum of length and width: \( 9.446 + 1.857 = 11.303 \). Then multiply by 2: \( 2\times11.303 = 22.606 \)

Answer:

Area: \( 17.541222 \), Perimeter: \( 22.606 \)