Discussion
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- Question
?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
- Correct Answer
- 12
- 1. 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
- 2. ? 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
- 3. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 2:5 and area of ?ADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?
Options- A. 98
- B. 94
- C. 90
- D. 86 Discuss
- 4. 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
- 5. ?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
- 6. ? DEF is right angled at E. If m?D = 30°, what is the length of DE (in cm), if EF = 6?3 cm?
Options- A. 18
- B. 12?3
- C. 18?3
- D. 12 Discuss
- 7. 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 Discuss
- 8. What is the area (in sq cm) of an equilateral triangle of side 14 cm?
Options- A. 49?3
- B. 98?3
- C. (49/2)?3
- D. (49/4)?3 Discuss
- 9. Point P is the midpoint of segment AB. Co-ordinates of P are (3 , 1) and B are (5, -4). What are the co-ordinates of point A?
Options- A. (-1 , 7)
- B. (1 , -7)
- C. (1 , 6)
- D. (-1 , -7) Discuss
- 10. What is the slope of the line perpendicular to the line passing through the points (8,2) and (3,1)?
Options- A. 5
- B. 3/5
- C. 5/3
- D. 1/5 Discuss
Area problems
Search Results
Correct Answer: 6?2
Correct Answer: 9
Correct Answer: 90
Correct Answer: (5 , -7)
Correct Answer: 9
Correct Answer: 18
Correct Answer: 84
Correct Answer: 49?3
Correct Answer: (1 , 6)
Correct Answer: 5
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