PassSparkNECO SSCE Mathematics 2008 past questions and answers
This 2008 NECO SSCE Mathematics set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2008 set with instant marking.
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Sample NECO SSCE Mathematics 2008 questions
1. Two angles of a triangle are 48 degrees and 67 degrees. What is the third angle?
- 65 degrees
- 55 degrees
- 75 degrees
- 115 degrees
Answer: A. 65 degrees
The angles of a triangle sum to 180 degrees, so the third angle is 180 - 48 - 67 = 65 degrees.
2. What is the size of each interior angle of a regular decagon?
- 120 degrees
- 144 degrees
- 150 degrees
- 162 degrees
Answer: B. 144 degrees
Each interior angle is (10 - 2) x 180 / 10 = 144 degrees.
3. A circle has radius 13 cm, and the perpendicular distance from its centre to a chord is 5 cm. What is the chord length?
- 12 cm
- 20 cm
- 24 cm
- 26 cm
Answer: C. 24 cm
The perpendicular bisects the chord, and a right triangle gives half the chord as sqrt(13^2 - 5^2) = 12 cm.
4. The bearing of Q from P is 060 degrees. What is the bearing of P from Q?
- 120 degrees
- 180 degrees
- 060 degrees
- 240 degrees
Answer: D. 240 degrees
The reverse bearing is found by adding 180 degrees, giving 060 + 180 = 240 degrees.
5. Two similar triangles have corresponding side lengths in the ratio 3:5. What is the ratio of their areas, smaller to larger?
- 9:25
- 3:5
- 9:5
- 25:9
Answer: A. 9:25
The ratio of areas of similar figures is the square of the side ratio, so it is 3^2:5^2 = 9:25.
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