41 - 46 of 46 Questions
# | Question | Ans |
---|---|---|
41. |
In the diagram, PQR is a straight line, QRST is a parallelogram, < TPQ = 72o and < RST = 126o. What type of triangle is \(\bigtriangleup\) PQT? A. An equilateral triangle B. A right-angled triangle C. An isosceles triangle D. A scalene triangle |
C |
42. |
How many pupils took the test? A. 36 B. 38 C. 39 D. 40 Detailed SolutionNo. of pupils = 1 + 3 + 4 + 7 + 8 + 6 + 6 + 4 + 1 = 40 |
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43. |
If the pass mark was 4. What percentage of the pupils failed the test? A. 20.0% B. 37% C. 62.5% D. 80.0% Detailed SolutionNo. of pupils that failed = 1 + 3 + 4 + 8% failed = \(\frac{8}{40} \times 100\)% = 20.0% |
|
44. |
The diagram shows an arc MN of a circle, centre O, with 10cm. If < MON = 72o. calculate the length of the arc, correct to three significant figures. [Take \(\pi = \frac{22}{7}\)] A. 6.28cm B. 12.6cm C. 22.6cm D. 62.8cm Detailed SolutionLength of arc = \(\frac{\theta}{360 \times 2 \pi r}\)= \(\frac{72}{360} \times 2 \times \frac{22}{7} \times 10\)cm = 12.57 = 12.6cm(3 s.f) |
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45. |
In the diagram what is x + y in terms of z? A. 180o - z B. 180o + z C. z - 180o D. z Detailed Solutionx + y + z = 180(sum of angles in a \(\bigtriangleup\))x + y = 180 - z |
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46. |
In the diagram |XY| = 12cm, |XZ| = 9cm, |ZN| = 3cm and ZY||NM, calculate |MY| A. 3cm B. 4cm C. 5cm D. 6cm Detailed Solution\(\frac{|YM|}{|YX|} = \frac{|ZM|}{|ZX|}\)\(\frac{|YM|}{12} = \frac{3}{9}\) |YM| = 3 x \(\frac{12}{9}\) |MY| = 4cm |
41. |
In the diagram, PQR is a straight line, QRST is a parallelogram, < TPQ = 72o and < RST = 126o. What type of triangle is \(\bigtriangleup\) PQT? A. An equilateral triangle B. A right-angled triangle C. An isosceles triangle D. A scalene triangle |
C |
42. |
How many pupils took the test? A. 36 B. 38 C. 39 D. 40 Detailed SolutionNo. of pupils = 1 + 3 + 4 + 7 + 8 + 6 + 6 + 4 + 1 = 40 |
|
43. |
If the pass mark was 4. What percentage of the pupils failed the test? A. 20.0% B. 37% C. 62.5% D. 80.0% Detailed SolutionNo. of pupils that failed = 1 + 3 + 4 + 8% failed = \(\frac{8}{40} \times 100\)% = 20.0% |
44. |
The diagram shows an arc MN of a circle, centre O, with 10cm. If < MON = 72o. calculate the length of the arc, correct to three significant figures. [Take \(\pi = \frac{22}{7}\)] A. 6.28cm B. 12.6cm C. 22.6cm D. 62.8cm Detailed SolutionLength of arc = \(\frac{\theta}{360 \times 2 \pi r}\)= \(\frac{72}{360} \times 2 \times \frac{22}{7} \times 10\)cm = 12.57 = 12.6cm(3 s.f) |
|
45. |
In the diagram what is x + y in terms of z? A. 180o - z B. 180o + z C. z - 180o D. z Detailed Solutionx + y + z = 180(sum of angles in a \(\bigtriangleup\))x + y = 180 - z |
|
46. |
In the diagram |XY| = 12cm, |XZ| = 9cm, |ZN| = 3cm and ZY||NM, calculate |MY| A. 3cm B. 4cm C. 5cm D. 6cm Detailed Solution\(\frac{|YM|}{|YX|} = \frac{|ZM|}{|ZX|}\)\(\frac{|YM|}{12} = \frac{3}{9}\) |YM| = 3 x \(\frac{12}{9}\) |MY| = 4cm |