4 cm

Question

6 cm
9 cm
Rectangle with a triangle on the bottom with one 90 degree angle
What is the area of the quadrilateral?

Answer 1

To find the area of the quadrilateral, we first need to find the area of the rectangle and the area of the triangle, and then add them together.

Area of the rectangle:
Length = 9 cm
Width = 6 cm
Area = Length x Width
Area = 9 cm x 6 cm
Area = 54 cm²

Area of the triangle:
Base = 6 cm
Height = 4 cm
Area = 0.5 x Base x Height
Area = 0.5 x 6 cm x 4 cm
Area = 12 cm²

Total area of the quadrilateral = Area of rectangle + Area of triangle
Total area = 54 cm² + 12 cm²
Total area = 66 cm²

Therefore, the area of the quadrilateral is 66 cm².