To find the area of the quadrilateral in the image, we can split it into two triangles. Given that the base of each triangle is 20 cm and the height is 24 cm, the area of each triangle is:
Area of one triangle = 1/2 * base * height
Area of one triangle = 1/2 * 20 cm * 24 cm
Area of one triangle = 240 cm2
Since the quadrilateral is made up of two triangles, the total area of the quadrilateral is:
Total area = 2 * Area of one triangle
Total area = 2 * 240 cm2
Total area = 480 cm2
Therefore, the correct answer is:
480 cm2
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