Home » If the perimeter of (bigtriangleup)PQR in thr diagram is 24cm, what is the area of…

If the perimeter of (bigtriangleup)PQR in thr diagram is 24cm, what is the area of…

If the perimeter of (bigtriangleup)PQR in thr diagram is 24cm, what is the area of (bigtriangleup)PRS?

A.
19.5cm²
B.
15.0cm²
C.
13.0cm²
D.
9.3cm²

Correct Answer: Option B

Explanation

Perimeter of (bigtriangleup) PQR = PQ + QR + PR
24cm = 6cm + 8cm = PR
24 = 14 + PR
PR = 24 – 14 = 10cm
Area of (bigtriangleup) PRS = (frac{1}{2} times 10 times 3cm^3)
= 15cm³