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

Mathematics WAEC 2008

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

  • 19.5cm2
  • 15.0cm2 checkmark
  • 13.0cm2
  • 9.3cm2

The correct answer is: 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
Previous Question Next Question

Leave A Comment