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Volume and Surface Area
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Question
The point equidistant from the sides of a triangle is called
Options
A. Circumcenter
B. Incentre
C. Orthocentre
D. Centroid
Correct Answer
Incentre
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Bank Exams
Volume and Surface Area problems
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1. ?ABC a right angled triangle has ?B = 90° and AC is hypotenuse. D is its circumcentre and AB = 3 cms, BC = 4 cms. The value of BD is
Options
A. 3 cms
B. 4 cms
C. 2.5 cms
D. 5.5 cms
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Correct Answer: 2.5 cms
2. The point where the 3 medians of a triangle meet is called
Options
A. centroid
B. Incentre
C. Circumcentre
D. orthocentre
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Correct Answer: centroid
3. Two adjacent sides of a parallelogram are 21 cms and 20 cms. The diagonal joining the end points of these two sides is 29 cms. The area of the parallelogram (in sq.cms) is
Options
A. 240
B. 120
C. 210
D. 420
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Correct Answer: 420
4. The chord AB of a circle of centre O subtends an angle ? with the tangent at A to the circle. Then measure of?ABO is
Options
A. ?
B. 90° - ?
C. 90° + ?
D. 2 (180° - ?)
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Correct Answer: 90° - ?
5. ? ABC is right angled at B. If m?A = 30° , what is the length of AB (in cm), if AC = 10 cm?
Options
A. 5
B. 5?3
C. 10?3
D. 10
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Correct Answer: 5?3
6. The point equidistant from the sides of a triangle is called
Options
A. Circumcenter
B. Incentre
C. Orthocentre
D. Centroid
Show Answer
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Discuss
Correct Answer: Incentre
7. The heights of a cone and a cylinder are equal. The radii of their bases are in the ratio 2:1. The ratio of their volumes is:
Options
A. 4:3
B. 3:4
C. 2:1
D. 1:2
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Correct Answer: 4:3
8. Which one of the following combination of measurements can form the sides of a triangle?
Options
A. 9 cm, 6 cm, 2 cm
B. 11 cm, 3 cm, 12 cm
C. 3 cm, 5 cm, 8 cm
D. 5 cm, 7 cm, 13 cm
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Correct Answer: 11 cm, 3 cm, 12 cm
9. In a right angled triangle if hypotenuse is 20 cm and ratio of other two sides is 4:3, the length of the sides are
Options
A. 4 cm and 3 cm
B. 8 cm and 6 cm
C. 12 cm and 9 cm
D. 16 cm and 12 cm
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Correct Answer: 16 cm and 12 cm
10. In triangle ABC, BAC = 90 deg and AD is perpendicular to BC. If AD = 6cm and BD = 4cm, then the length of BC is
Options
A. 10 cm
B. 12 cm
C. 13 cm
D. 15 cm
Show Answer
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Correct Answer: 13 cm
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