Answer:
Step-by-step explanation:
The figure is made up of a rectangle and two semicircles.
We find the area of the rectangle using the formula;
We find the area of one of the semicircles and multiply by 2;
The area of the semicircles
We substitute and
to obtain;
The area of the figure is
To the nearest tenth we have;
The correct answer is A
Using the given information, the area of figure B is 315 ft²
<h3>Calculating Area </h3>From the question, we are to calculate the area of figure B
In the given diagram, figure B is made up of a triangle and a square
∴ Area of figure B = Area of triangle + Area of square
Area of triangle =
Where b is the base
and h is the height
Area of square =
Where is the length of a side
In the diagram,
∴ Area of figure B =
∴ Area of figure B = (15×6) + 225
∴ Area of figure B = 90 + 225
∴ Area of figure B = 315 ft²
Hence, the area of figure B is 315 ft²
Learn more on Calculating area here: brainly.com/question/23990217
#SPJ1
