Default Title

Question (1)

QN009858

The area of a circle is calculated by:

(A) 2πr
(B) πr²
(C) πd
(D) r²

Correct Answer: B

Explanation:

Area of a circle = πr².

Link:

Report Error

Question (2)

QN009859

A circle has radius 7 cm. Its area is:

(A) 44 cm²
(B) 88 cm²
(C) 154 cm²
(D) 308 cm²

Correct Answer: C

Explanation:

Area = 22/7 × 7 × 7 = 154 cm².

Link:

Report Error

Question (3)

QN009860

The region enclosed by a circle is called its:

(A) Circumference
(B) Arc
(C) Area
(D) Diameter

Correct Answer: C

Explanation:

The enclosed region of a circle is its area.

Link:

Report Error

Question (4)

QN009861

If the radius of a circle is doubled, the area becomes:

(A) Double
(B) Triple
(C) Four times
(D) Half

Correct Answer: C

Explanation:

Area depends on the square of radius.

Link:

Report Error

Question (5)

QN009862

A circle has area 154 cm². Using π = 22/7, its radius is:

(A) 5 cm
(B) 6 cm
(C) 7 cm
(D) 8 cm

Correct Answer: C

Explanation:

r² = (154 × 7)/22 = 49, so r = 7 cm.

Link:

Report Error

Question (6)

QN009863

Which expression correctly represents the area of a circle?

(A) 2πr
(B) πr²
(C) πd²
(D) 2r²

Correct Answer: B

Explanation:

Area of circle = πr².

Link:

Report Error

Question (7)

QN009864

The area of a circle with radius 14 m is:

(A) 308 m²
(B) 616 m²
(C) 154 m²
(D) 440 m²

Correct Answer: B

Explanation:

Area = 22/7 × 14 × 14 = 616 m².

Link:

Report Error

Question (8)

QN009865

If the radius of a circle becomes half, the area becomes:

(A) Half
(B) Double
(C) One-fourth
(D) Four times

Correct Answer: C

Explanation:

Area becomes (1/2)² = 1/4 times.

Link:

Report Error

Question (9)

QN009866

A circle has area 314 cm². Using π = 3.14, find the radius.

(A) 5 cm
(B) 10 cm
(C) 15 cm
(D) 20 cm

Correct Answer: B

Explanation:

r² = 314/3.14 = 100, so r = 10 cm.

Link:

Report Error

Question (10)

QN009867

Which unit is used to measure the area of a circle?

(A) cm
(B) m
(C) cm²
(D) cm³

Correct Answer: C

Explanation:

Area is measured in square units.

Link:

Report Error

Question (1)

The area of a circle is calculated by:

Explanation:

Link:

Question (2)

A circle has radius 7 cm. Its area is:

Explanation:

Link:

Question (3)

The region enclosed by a circle is called its:

Explanation:

Link:

Question (4)

If the radius of a circle is doubled, the area becomes:

Explanation:

Link:

Question (5)

A circle has area 154 cm². Using π = 22/7, its radius is:

Explanation:

Link:

Question (6)

Which expression correctly represents the area of a circle?

Explanation:

Link:

Question (7)

The area of a circle with radius 14 m is:

Explanation:

Link:

Question (8)

If the radius of a circle becomes half, the area becomes:

Explanation:

Link:

Question (9)

A circle has area 314 cm². Using π = 3.14, find the radius.

Explanation:

Link:

Question (10)

Which unit is used to measure the area of a circle?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY