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Q:

XYZ is a right angled triangle and ∠Y = 90°. If XY = 2.5 cm and YZ = 6 cm then the circumradius of XYZ is

A) 6.5 cm B) 3.25 cm
C) 3 cm D) 2.5 cm
 
Answer & Explanation Answer: B) 3.25 cm

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Filed Under: Simplification
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Q:

If 2x-12x = 5, then what is the value x2 + 116x2 - 2

A) 19/4 B) 23/4
C) 27/4 D) 31/4
 
Answer & Explanation Answer: A) 19/4

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Q:

If √3 = 1.732, then the value of 9+233?

A) 7.169 B) 7.196
C) 5.198 D) 7.296
 
Answer & Explanation Answer: B) 7.196

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Q:

If Sin 31° = xy, then the value of Sec 31° - Sin 59° is

A) x2yy2-x2 B) -x2yy2-x2
C) -y2y2-x2 D) x
 
Answer & Explanation Answer: A) x2yy2-x2

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Q:

In a ABC, BC is extended upto D, ACD =120°, B = 1/2 A. Then A is

A) 60° B) 75°
C) 80° D) 90°
 
Answer & Explanation Answer: C) 80°

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Q:

If x = 3+13, then the value of x-12642x-1x-233 is

A) √3/6 B) 2√3/6
C) 5/6 D) 2/3
 
Answer & Explanation Answer: C) 5/6

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Q:

The value of 2.33+0.0272.33-0.69+0.09

A) 2 B) 2.27
C) 2.33 D) 2.6
 
Answer & Explanation Answer: D) 2.6

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Q:

O is the orthocentre ofABC, and if ∠BOC = 110° then ∠BAC will be

A) 110° B) 70°
C) 100° D) 90°
 
Answer & Explanation Answer: B) 70°

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