The diameter of a circle is 3 5 cm What is...

Home / Arithmetic Ability / Area / Question

Examveda

The diameter of a circle is 3.5 cm. What is the circumference of the circle ?

A. 11 cm

B. 22 cm

C. 38.5 cm

D. 45.2 cm

E. None of these

Answer: Option A

Solution(By Examveda Team)

Radius :
$$\eqalign{ & = \frac{{3.5}}{2}cm \cr & = \frac{7}{4}cm \cr} $$
∴ Circumference :
$$\eqalign{ & = \left( {2 \times \frac{{22}}{7} \times \frac{7}{4}} \right)cm \cr & = 11\,cm \cr} $$

This Question Belongs to Arithmetic Ability >> Area

Join The Discussion

Related Questions on Area

The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:

A. 15360 m²

B. 153600 m²

C. 30720 m²

D. 307200 m²

E. None of these

View Answer

An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

A. 2%

B. 2.02%

C. 4%

D. 4.04%

E. None of these

View Answer

The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?

A. 16 cm

B. 18 cm

C. 24 cm

D. Data inadequate

E. None of these

View Answer

The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

A. 40%

B. 42%

C. 44%

D. 46%

View Answer