(ii) Find the area of $ riangle OPB$.

Question

(ii) Find the area of $	riangle OPB$.

Accepted Answer

Step 1: In $	riangle OBP$, $	an 30° = \frac{PB}{36} \Rightarrow PB = 12\sqrt{3}$ cm.
Step 2: Area of $	riangle OPB = \frac{1}{2} 	imes OP 	imes PB = \frac{1}{2} 	imes 36 	imes 12\sqrt{3} = 216\sqrt{3}$ cm$^2$.

Question

Solution