JAMB - Mathematics (2025 - No. 1)
From the diagram above, find the area of the triangle PQR
143cm\(^2\)
120cm\(^2\)
130cm\(^2\)
117cm\(^2\)
Explanation
Area of triangle PQR = \(\frac{1}{2}\) x QR x Pc
Where QR = base of triangle PQR, Pc = height of triangle PQR
Area of triangle PQR = \(\frac{1}{2}\) x 20 x 13 = 10 x 13 = 130cm\(^2\).