<u>Given:</u>
A circle with a diameter of 20 m inside a triangle with a base length of 56 m and a height of 56 m.
<u>To find:</u>
The area of the shaded region.
<u>Solution:</u>
To find the area of the shaded region, we must subtract the area of the circle from the area of the triangle.
The area of a circle 
The diameter of the circle is 20 m so the radius is
m.
The area of the circle
square m.
The area of a triangle 
The triangle has a base length of 56 m and a height of 56 m.
The area of the triangle
square m.
The area of the shaded region
square m.
The area of the shaded region is 1,254 square m.