Discussion
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- Question
What is the area (in sq cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm?
Options- A. 42
- B. 168
- C. 84
- D. 63
- Correct Answer
- 84
- 1. ? LMN is right angled at M. If m?N = 45°, what is the length of MN (in cm), if NL = 9?2 cm?
Options- A. 9?2
- B. 9/?2
- C. 18
- D. 9 Discuss
- 2. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 2:3 and area of ?ADE is 4 sq cm, what is the area (in sq cm) of quadrilateral BDEC.
Options- A. 25
- B. 21
- C. 5
- D. 9 Discuss
- 3. What is the reflection of the point (5, 3) in the line y = -2?
Options- A. (-9 , 3)
- B. (-5 , -7)
- C. (-9 , -3)
- D. (5 , -7) Discuss
- 4. ?XYZ is similar to ?PQR. If ratio of perimeters of ?XYZ : ?PQR is 3:2 and if PQ = 6 cm then what is the length of XY (in cm)?
Options- A. 4
- B. 8
- C. 12
- D. 9 Discuss
- 5. What is the slope of the line parallel to the line passing through the points (-2, -1) and (4, -3)?
Options- A. 1/3
- B. -1/3
- C. -3
- D. 3 Discuss
- 6. What is the reflection of the point (-0.5, 6) in the x-axis?
Options- A. (0.5, -6)
- B. (-6, -0.5)
- C. (6, -0.5)
- D. (-0.5, -6) Discuss
- 7. The areas of two similar triangles ?ABC and ?PQR are 36 sq cms and 9 sq cms respectively. If PQ = 4 cm then what is the length of AB (in cm)?
Options- A. 16
- B. 12
- C. 8
- D. 6 Discuss
- 8. The diagonal of a square is 12 cm what is the length (in cm) of its side?
Options- A. 6?2
- B. 12?2
- C. 6
- D. 9 Discuss
- 9. ?ABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?
Options- A. 6
- B. 18
- C. 21
- D. 12 Discuss
- 10. ? DEF is right angled at E. If m ?D = 30°. What is the length (in cm) of DE, if EF = 2?3 cm?
Options- A. 3
- B. 4
- C. 6
- D. 2 Discuss
Area problems
Search Results
Correct Answer: 9
Correct Answer: 21
Correct Answer: (5 , -7)
Correct Answer: 9
Correct Answer: -1/3
Correct Answer: (-0.5, -6)
Correct Answer: 8
Correct Answer: 6?2
Correct Answer: 12
Correct Answer: 6
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