Math
the curved part of this figure is a semicircle.

what is the best approximation for the area of this figure?

10.5+14.5π units²

21+7.25π units²

10.5+7.25π units²

21+14.5π units²

ANSWER



EXPLANATION

The figure is made up of a triangle and a semicircle.

The area of the triangle is









The area of the semicircular part is



We can find the diameter squared using the Pythagoras Theorem.







We substitute this into the formula for finding the area of the semicircle to get;





Therefore the area of the figure is



See diagram in attachment.