Question

find the area of the circle below. use your calculator’s version of pi. round your answer to the nearest tenth.
(image of a coordinate grid with a red circle plotted on it)

Explanation:

Step1: Identify circle radius

From the grid, the circle has a radius $r = 3$ units (distance from center (1,1) to edge (4,1) is 3).

Step2: Apply area formula

Use circle area formula $A = \pi r^2$.
$A = \pi \times 3^2 = 9\pi$

Step3: Calculate and round

Use calculator $\pi$, compute $9\pi \approx 28.2743$, round to nearest tenth.

Answer:

28.3