Question

The quadrilateral has the following side lengths: AB = 11, BC =7, CD = 9 and DA = 3. The angles at points A and C are right angles. What is the area of the quadrilateral?

Answer 1

C

Explanation:

We can calculate the area of triangles ABD and DBC, and then add them together to get the area of the whole quadrilateral.

`A = (11 * 3 + 7 * 9)/(2) = (33 + 63)/(2) = (96)/(2) = 48`