Surface areas and Volumes of composite figures - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 1989

In the diagram, HK is parallel to QR, PH = 4cm and HQ = 3cm. What is the ratio of KR:PR?

A. 7:3
B. 3:7
C. 3:4
D. 4:3

Question 7:

• JAMB 1990

Find the length of a side of a rhombus whose diagonals are 6cm and 8cm

A. 8cm
B. 5cm
C. 4cm
D. 3cm

Question 8:

• JAMB 1990

In the figure, PQR is a semicircle. Calculate the area of the shaded region

A. 125^{\(\frac{2}{7}\)2}
B. 149^{\(\frac{2}{7}\)}cm²
C. 234^{\(\frac{1}{7}\)}cm²
D. 267^{\(\frac{1}{2}\)}cm²

Question 9:

• JAMB 1991

In the figure, PQRS is a square of sides 8cm. What is the area of \(\bigtriangleup\)UVW?

A. 64 sq. cm
B. 40 sq.cm
C. 50 sq.cm
D. 10 sq.cm