In the diagram above, PXR and PYO are two semicircles with diameters 14cm and 7cm respectively. Find the perimeter of the region (take \(\pi\) = \(\frac{22}{7}\) )
Attached Figure / Diagram
A
22cm
B
33cm
C
40cm
D
47cm
E
66cm
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
P = \(\pi\)r + \(\pi\)r + R = \(\frac{22}{7}\) x 7 + \(\frac{22}{7}\) x \(\frac{7}{2}\) + 7
P = 22 + 11 + 7 = 40cm
Source: WAEC / JAMB / NECO Classroom Archive (Record #22912)