Volume and Surface Area problems
- 1. Length of the sides of a triangle are a, b, c respectively. If a2 + b2 + c2 = ab +bc + ca then the triangle is
Options- A. isosceles
- B. equilateral
- C. scalene
- D. right-angled Also asked in: Bank Exams
Correct Answer: equilateral
- 2. Length of the sides of a triangle are a, b, c respectively. If a2 + b2 + c2 = ab +bc + ca then the triangle is
Options- A. isosceles
- B. equilateral
- C. scalene
- D. right-angled Also asked in: Bank Exams
Correct Answer: equilateral
- 3. A right circular conical structure stands on a circular base of 21m diameter and is 14m in height. The total cost of colour washing for its curved surface at Rs. 6 per sq. m. is (Take ? = 22/7 )
Options- A. 4365
- B. 4465
- C. 3465
- D. 3365 Also asked in: Bank Exams
Correct Answer: 3465
- 4. Points P , Q and R are on a circle such that ?PQR = 40° and ?QRP = 60° . Then the subtended angle by arc QR at the centre is
Options- A. 80°
- B. 120°
- C. 140°
- D. 160° Also asked in: Bank Exams
Correct Answer: 160°
- 5. In an isosceles triangle ?ABC, AB = AC and ?A = 80°. The bisector of ?B and ?C meet at D. The ?BDC is equal to
Options- A. 90°
- B. 100°
- C. 130°
- D. 80° Also asked in: Bank Exams
Correct Answer: 130°
- 6. Radius of cross section of a solid right circular cylindrical rod is 3.2 dm. The rod is melted and 44 equal solid cubes of side 8 cm are formed. The length of the rod is (Take ? = 22/7)
Options- A. 56 cm
- B. 7 cm
- C. 5.6 cm
- D. 0.7 cm Also asked in: Bank Exams
Correct Answer: 7 cm
- 7. If the volumes of two right circular cones are in the ratio 1:4 and their diameters of bases in the ratio 4:5, then their heights will be in the ratio:
Options- A. 1: 5
- B. 4:25
- C. 16:25
- D. 25:64 Also asked in: Bank Exams
Correct Answer: 25:64
- 8. Which of the following is a true statement?
Options- A. Two similar triangles are always congruent.
- B. Two similar triangles have equal areas
- C. Two triangles are similar if their corresponding sides are proportional
- D. Two polygons are similar if their corresponding sides are proportional Also asked in: Bank Exams
Correct Answer: Two triangles are similar if their corresponding sides are proportional
- 9. In a triangle ABC, OB and OC are the bisectors of angles ? B and ?C respectively. ?BAC = 60°. Then the angle ?BOC will be
Options- A. 150°
- B. 120°
- C. 100°
- D. 90° Also asked in: Bank Exams
Correct Answer: 120°
- 10. If the difference between the measures of the two smaller angles of a right angled triangle is 8°, then the smallest angle is
Options- A. 37°
- B. 41°
- C. 42°
- D. 49° Also asked in: Bank Exams
Correct Answer: 41°
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