Jamb Mathematics Past Questions For Year 1990
Question 31
In triangles XYZ and XQP, XP = 4cm, XQ = 5cm and PQ = QY = 3cm. Find ZY
- A. 8cm
- B. 6cm
- C. 4cm
- D. 3cm
Question 32
In the figure, YXZ = 30°, XYZ = 105° and XY = 8cm. Calculate YZ
- A. 16\(\sqrt{2}\)cm
- B. 8\(\sqrt{2}\)cm
- C. 4\(\sqrt{2}\)cm
- D. 22cm
Question 33
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 34
Find the curved surface area of the frustrum in the figure
- A. 16\(\pi \sqrt{10}\)cm²
- B. 20\(\pi \sqrt{10}\)cm²
- C. 24\(\pi \sqrt{10}\)cm²
- D. 36\(\pi \sqrt{10}\)cm²
