Question

match the formula for the area of the shapes. 1. circle of radius r 2. square of side s 3. rectangle of length l and width w a. lw b. s² c. 2l + 2w d. πr²

Explanation:

Step1: Recall circle area formula

The area formula for a circle with radius $r$ is $A = \pi r^{2}$. So for 1. circle of radius $r$, the answer is D. $\pi r^{2}$.

Step2: Recall square area formula

The area of a square with side - length $s$ is $A=s^{2}$. So for 2. Square of side $s$, the answer is B. $s^{2}$.

Step3: Recall rectangle area formula

The area of a rectangle with length $l$ and width $w$ is $A = lw$. So for 3. Rectangle of length $l$ and width $w$, the answer is A. $lw$.

Answer:

1. D. $\pi r^{2}$
2. B. $s^{2}$
3. A. $lw$