Question

I need help on these math questions!

Answer 1

The correct answer is a-25x square meters

Answer 2

Lets get started :)

The first question requires the area of the circle with a radius of 5 meters

Area formula of a circle is;
A = $\pi$r²
   = $\pi$(5)² 
   = 25$\pi$ square meters

So your answer will be Option B

The second question asks us to find the area of the remaining rectangle

We have a rectangle with given length to be 10 in and width of 6 in
The Area formula of a rectangle is:
A = length x width
    = 10 x 6
    = 60 in²

We have a triangle within the rectangle with a base of 1.5 in { 10 - 8.5 } and a height of 1.5 in { 6 - 4.5 }
The Area formula of a triangle is:
A = $\frac{1}{2}$ x base x height
    =$\frac{1}{2}$ x 1.5 x 1.5
    = 1.125 in²

For finding the remaining area of the rectangle after removing the triangle, we need to subtract the area of the triangle from the area of the rectangle

Remaining area = Area of rectangle - Area of triangle
                           = 60 - 1.125
                           = 58.875 in²

So your answer will be Option C