Can someone me find the area and perimeter for this and can you explain the process

Area of Figure; 3.24π + 21.6 ( square meters ),

Perimeter of Figure; 3.6π + 12 ( meters )

Step-by-step explanation:

As we can see, this picture consists of half circles and a rectangle. If we were to combine each of these half circles, we would get a whole circle with a radius of 1.8 meters;

Area of Circle; πr^2 = π * ( 1.8 )^2 = 3.24π ( square meters ),

If 1.8 is known to be the radius of this full circle, it would be that the diameter is 1.8 * 2 ⇒ 3.6. Knowing that the diameter is one dimension of a rectangle in the picture, we can assume the area of the rectangle to be;

Area of Rectangle; length * width = 6 * 3.6 = 21.6 ( square meters ),

Area of Figure; 3.24π + 21.6 ( square meters )

Now to determine the circumference of these two half circles / whole circle, let us apply the formula 2πr;

Perimeter of Circle; 2πr = 2π * 1.8 = 3.6π

To find the perimeter of the whole figure, we would take the lengths of two of the sides of the rectangles, in addition to the perimeter of the whole circle;

Perimeter of Whole Figure; 3.6π + 6 * 2 = 3.6π + 12 ( meters ),

Perimeter of Whole Figure; 3.6π + 12 ( meters )

2 ways
1. math
2. math+logic (easier)

1.
percent means parts out of 100
x%=x/100

816/850=x/100
times both sides by 8500
8160=85x
divide both sides by 85
96=x
answer is 96%

2. easier
816/850=0.96/1
multily it by 100/100 to make it over 100 and into percent
96/100=96%

answer is 96%