74
Q:

If the length of the diagonal of a square is 20cm,then its perimeter must be

a. 402cm     b. 302cm    c. 10cm    d. 152cm

A) a B) b
C) c D) d

Answer:   A) a



Explanation:

We know that d=√2s 

Given diagonal = 20 cm 

=> s = 20/2 cm

Therefore, perimeter of the square is 4s = 4 x 20/2 = 402   cm.

Subject: Area
Exam Prep: Bank Exams
Job Role: Bank PO
Q:

What is the ratio of radius of incircle and circumcircle for an equilateral triangle with an area of 22√3 sq. units?

A) 1/2 B) 1/4
C) 1/3 D) 2/3
 
Answer & Explanation Answer: A) 1/2

Explanation:
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Exam Prep: Bank Exams

2 729
Q:

The circumference of a circle is 66 cm. Find its radius (in cm).

 

A) 21 B) 10.5
C) 4.5 D) 9
 
Answer & Explanation Answer: B) 10.5

Explanation:
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4 5313
Q:

If the length of one side and the diagonal of a rectangle are 10 cm and 26 cm respectively, then find its perimeter (in cm).

 

A) 136 B) 31
C) 68 D) 62
 
Answer & Explanation Answer: C) 68

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Exam Prep: Bank Exams

1 512
Q:

In ΔDEF measure of angle E is 90°. If cosD = 8/17, and DE = 16cm, then what is the length (in cm) of side DF?

 

A) 30 B) 20
C) 26 D) 34
 
Answer & Explanation Answer: D) 34

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Exam Prep: Bank Exams

2 669
Q:

Find the area (in cm²) of a semi-circle of radius 21 cm.

A) 1386 B) 960
C) 693 D) 1920
 
Answer & Explanation Answer: C) 693

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1 576
Q:

The length of one side and the diagonal of a rectangle are 7 cm and 25 cm respectively. Find its area (in cm²)

 

A) 336 B) 208
C) 168 D) 416
 
Answer & Explanation Answer: C) 168

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Exam Prep: Bank Exams

1 667
Q:

In a triangle ABC, the length of in-radius and circum-radius is 2 units and 6 units respectively. Find the distance (in units) between the in-centre and circum-centre.

 

A) √3 B) 2√3
C) 3√3 D) 4√3
 
Answer & Explanation Answer: B) 2√3

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2 508
Q:

The ratio of the areas of a square and a regular hexagon, both inscribed in a circle is?

 

A) 4 : 3√3 B) 1 : √3
C) 3√3 : 2 D) 2 : 3
 
Answer & Explanation Answer: A) 4 : 3√3

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1 5100