Answer:
10.5 units²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = [tex]\frac{1}{2}[/tex] h (a + b)
where h is the height and a, b the parallel bases
Here h = OS = 3, a = OC = 5 and b = SK = 2, thus
A = 0.5 × 3 × (5 + 2) = 1.5 × 7 = 10.5 units²
