Searching for "angle"

Q:

The sides of a triangle are in the ratio 1/2 : 1/3 : 1/4 and its perimeter is 104 cm. The length of the longest side (in cm) is

A) 52 B) 48
C) 32 D) 26
 
Answer & Explanation Answer: B) 48

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Filed Under: Area
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Q:

The height of an equilateral triangle is 18 cm. Its area is

A) 36√3 sq. m. B) 108√3 sq. cm.
C) 108 sq. cm. D) 96√3 sq. m.
 
Answer & Explanation Answer: B) 108√3 sq. cm.

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Q:

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?

A) 1/2 B) 1/3
C) 1 D) 1/√2
 
Answer & Explanation Answer: C) 1

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Filed Under: Simplification
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Q:

What are the co-ordinates of the centroid of a triangle, whose vertices are A(1, -5), B(-4, 0) and C(3, -4)?

A) ( 0, 3) B) ( 0, -3)
C) ( 0, -5) D) ( 0, 5)
 
Answer & Explanation Answer: B) ( 0, -3)

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Q:

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area (in sq.cm) of the triangle?

A) 50√5 B) 100
C) 75√7 D) 175
 
Answer & Explanation Answer: C) 75√7

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Filed Under: Volume and Surface Area
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Q:

Δ DEF is right angled at E. If m∠F = 45°, then what is the value of 2 Sin F x Cot F?

A) √2 B) 2
C) 1/√2 D) 1/2
 
Answer & Explanation Answer: A) √2

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Q:

The co-ordinates of the centroid of a triangle ABC are (1 , -4). What are the co-ordinates of vertex C if co-ordinates of A and B are (3 , -4) and (0 , 5) respectively?

A) (0 , 13) B) (0, 5)
C) (0, -5) D) (0 , -13)
 
Answer & Explanation Answer: D) (0 , -13)

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Q:

What is the area (in sq cm) of a rectangle if its diagonal is 25 cm and one of its sides is 24 cm?

A) 186 B) 144
C) 132 D) 168
 
Answer & Explanation Answer: D) 168

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