Find the area of the triangle, and subtract the area of the 2 circles.
Area of a rectangle: length x width
Length = 18 cm
Width = diameter of each circle = 18/2 = 9 cm
A1 = 18 x 9 = 162 cm2
Now, the area of the circles
Area of a circle = π r^2
Where:
r = radius = diameter /2 = 9/2 = 4.5
A2 = A3 = π (4.5)^2 = 63.61 cm2
Subtract A2 and A3 to A1:
A= 162 - 63.61-63.61 = 34.77 cm2
