4 cm
6 cm
9 cm
3 cm
Rectangle with a triangle on the bottom with one 90 degree angle
What is the area of the quadrilateral?
The area of the quadrilateral can be calculated by finding the area of the rectangle and the triangle separately, and then adding them together.
Area of the rectangle = length x width
= 9 cm x 6 cm
= 54 cm^2
Area of the triangle = 1/2 x base x height
= 4 cm x 3 cm x 1/2
= 6 cm^2
Total area of the quadrilateral = area of rectangle + area of triangle
= 54 cm^2 + 6 cm^2
= 60 cm^2
Therefore, the area of the quadrilateral is 60 square centimeters.