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Q:

The number of diagonals in a decagon is:

 

A) 20 B) 10
C) 25 D) 35
 
Answer & Explanation Answer: D) 35

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Q:

What is the length of diagonal, if area of a rectangle is 168 sq.cm and breadth is 7 cm?

A) 24 cm B) 15 cm
C) 17 cm D) 25 cm
 
Answer & Explanation Answer: D) 25 cm

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Q:

The area of a rhombus is 24 m2 and the length of one of its diagonals is 8 m. The length of each side of the rhombus will be:

 

A) 5m B) 10m
C) 4m D) 6m
 
Answer & Explanation Answer: A) 5m

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Q:

The perimeter and the breadth of a rectangle are 46 cm and 8 cm respectively. Calculate the length of its diagonal (in cm).

 

A) 17   B) 34
C)  15     D) 30
 
Answer & Explanation Answer: A) 17  

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Q:

The diagonals of 2 squares M and N are in the ratio 2:1. The ratio of their areas is

A) 1:2 B) 2:1
C) 1:4 D) 4:1
 
Answer & Explanation Answer: D) 4:1

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Q:

The number of diagonals in a hendecagon is

A) 44 B) 39
C) 40 D) 33
 
Answer & Explanation Answer: D) 33

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Q:

The length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively. Find its area (in cm2).

 

A) 240   B) 120  
C) 80   D) 160
 
Answer & Explanation Answer: B) 120  

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Q:

The length of a diagonal in cms of a rectangle of length 5 cm and width 6 cm is

 

A) 61 B) ±61
C) 11 D) ±11
 
Answer & Explanation Answer: A) 61

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