4 cm
6 cm
9 cm
5 cm
Rectangle with a triangle on the bottom with one 90 degree angle
What is the area of the quadrilateral?
To find the area of the quadrilateral, we first need to find the individual areas of the rectangle and triangle, and then add them together.
Area of the rectangle = length × width
Area of rectangle = 9 cm × 6 cm = 54 cm²
To find the area of the triangle, we use the formula:
Area of triangle = (base × height) / 2
Area of triangle = (4 cm × 5 cm) / 2 = 20 cm²
Now we add the areas together:
Total area of the quadrilateral = area of rectangle + area of triangle
Total area = 54 cm² + 20 cm² = 74 cm²
Therefore, the area of the quadrilateral is 74 cm².