Jamb Mathematics Questions - lengths and areas of plane geometrical figures
Question 26:
PQR is the diagram of a semicircle RSP with centre at Q and radius of length 3.5cm. If QPT = 60o. Find the perimeter of the figure PTRS. \(\pi\) = \(\frac{22}{7}\)
- A 25cm
- B 18cm
- C 36cm
- D 29cm
- E 25.5cm
Question 27:
In the figure, find PRQ
- A 66\(\frac{1}{2}\)<sup style='font-size: smaller;'>o</sup>
- B 62\(\frac{1}{2}\)<sup style='font-size: smaller;'>o</sup>
- C 125<sup style='font-size: smaller;'>o</sup>
- D 105<sup style='font-size: smaller;'>o</sup>
- E 65<sup style='font-size: smaller;'>o</sup>
Question 28:
Using \(\bigtriangleup\)XYZ in the figure, find XYZ
- A 29<sup style='font-size: smaller;'>o</sup>
- B 31<sup style='font-size: smaller;'>o</sup>
- C 31<sup style='font-size: smaller;'>o</sup> 20'
- D 31<sup style='font-size: smaller;'>o</sup> 18'
Question 29:
Find the area of the shaded portion of the semicircular figure.
- A \(\frac{r^2}{4}(4 \pi - 3 \sqrt{3})\)
- B \(\frac{r^2}{4}(2 \pi - 3 \sqrt{3})\)
- C \(\frac{1}{2}r^2 \pi\)
- D \(\frac{1}{8}r^2 \sqrt{3}\)
- E \(\frac{r^2}{4}(4 \pi - 3 \sqrt{3})\)
Question 30:
In the figure, PQRSTW is a regular hexagon. QS intersects RT at V. Calculate TVS
- A 60<sup style='font-size: smaller;'>o</sup>
- B 90<sup style='font-size: smaller;'>o</sup>
- C 120<sup style='font-size: smaller;'>o</sup>
- D 30<sup style='font-size: smaller;'>o</sup>
- E 80<sup style='font-size: smaller;'>o</sup>