90°
50°
45°
40°
Correct answer is D
< VSU = 90° (angle in a semi-circle)
\(\therefore\) < SUV = 180° - 90° - 50°
= 40°
< RSV = 40° (angle which chord makes tangent = angle in alternate segment)
Using the cumulative frequency curve. What is the 80th percentile?
45.5
46.5
47.5
48.5
Correct answer is C
No explanation has been provided for this answer.
Using the cumulative frequency curve, estimate the median of the data represented on the graph.
35.5
36.5
37.5
38.5
Correct answer is B
No explanation has been provided for this answer.
48 cm
40 cm
43 cm
45 cm
Correct answer is C
Perimeter of the sector = \(2r + \frac{\theta}{360°} \times 2\pi r\)
= \(2(10.5) + \frac{120}{360} \times 2 \times \frac{22}{7} \times 10.5\)
= \(21 + 22\)
= 43 cm
1
2
3
4
Correct answer is C
No explanation has been provided for this answer.