Discussion
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- Question
A cylindrical vessel of height 5 cm and radius 4 cm is completely filled with sand. When this sand is poured out it forms a right circular cone of radius 6 cm. What will be the height of this cone? (Take ? = 22/7)
Options- A. 6.67 cm
- B. 2.22 cm
- C. 3.33 cm
- D. 1.67 cm
- Correct Answer
- 6.67 cm
- 1. What is the measure of central angle of the arc whose length is 11 cm and radius of the circle is 14 cm?
Options- A. 45°
- B. 60°
- C. 75°
- D. 90° Discuss
- 2. Find the radius of the circle if the area of its sector is 30.8 sq cm whose corresponding central angle is 72°?
Options- A. 3.5 cm
- B. 7 cm
- C. 14 cm
- D. 10.5 cm Discuss
- 3. A rectangular swimming pool of length 20 m and breadth 10 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 3 m at the other. How much water is needed to completely fill this pool? (Take ? = 22/7)
Options- A. 800 cubic metres
- B. 300 cubic metres
- C. 480 cubic metres
- D. 400 cubic metres Discuss
- 4. ABCD is a kite where m?A is 90° and m?C is 60°. If length of AB is 6 cm, what is the length of diagonal AC?
Options- A. 6(?2+?3) cm
- B. 2(?3+?6) cm
- C. 2(?2+?3) cm
- D. 3(?2+?6) cm Discuss
- 5. The area of an equilateral triangle is 9?3 sq cm, find its perimeter?
Options- A. 18 cm
- B. 9 cm
- C. 9?3 cm
- D. 6?3 cm Discuss
- 6. Point P is the midpoint of segment AB. Co-ordinates of point P are (2,1) and point A are (11,5). Co-ordinates of point B are
Options- A. (-7,-3)
- B. (6.5,3)
- C. (7,3)
- D. (-6.5,-3) Discuss
- 7. In ? ABC, the median AD is 6 cm and CB is 12 cm, measure of angle CAB is
Options- A. 90°
- B. 30°
- C. 60°
- D. 120° Discuss
- 8. If the sum of the measures of all the interior angles of polygon is 2340°. What is the number of sides of the polygon?
Options- A. 13
- B. 15
- C. 17
- D. 11 Discuss
- 9. ?PQR is right angled at Q. QS is the altitude. PQ is 2?13 cm and PS is 8 cm. What is the length of SR?
Options- A. 6?13 cm
- B. 4?13 cm
- C. 18 cm
- D. 9 cm Discuss
- 10. If a cylinder of radius 4.3 cm and height 4.8 cm is melted and constructed into a cone of the same radius, what will be the height of this cone? (Use ? = 22/7)
Options- A. 28.8 cm
- B. 14.4 cm
- C. 7.2 cm
- D. 21.6 cm Discuss
Area problems
Search Results
Correct Answer: 45°
Correct Answer: 7 cm
Correct Answer: 400 cubic metres
Correct Answer: 3(?2+?6) cm
Correct Answer: 18 cm
Correct Answer: (-7,-3)
Correct Answer: 90°
Correct Answer: 15
Correct Answer: 18 cm
Correct Answer: 14.4 cm
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