Default Title

Question (11)

QN009678

Which of the following has the smallest perimeter for the same area?

(A) Long rectangle
(B) Square
(C) Circle
(D) Triangle

Correct Answer: C

Explanation:

Circle has minimum perimeter for a fixed area.

Link:

Report Error

Question (12)

QN009679

A square and an equilateral triangle have the same perimeter of 36 cm. The side of the triangle is:

(A) 6 cm
(B) 9 cm
(C) 12 cm
(D) 18 cm

Correct Answer: C

Explanation:

Side = 36 ÷ 3 = 12 cm.

Link:

Report Error

Question (13)

QN009680

A shape made of unit squares has 10 outer edges. Its perimeter is:

(A) 5 units
(B) 10 units
(C) 20 units
(D) 40 units

Correct Answer: B

Explanation:

Perimeter equals total outer edges = 10 units.

Link:

Report Error

Question (14)

QN009681

A rectangle has perimeter 50 cm. If its length is 15 cm, its breadth is:

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

Correct Answer: B

Explanation:

2(l + b) = 50 ⇒ l + b = 25 ⇒ b = 10 cm.

Link:

Report Error

Question (15)

QN009682

The perimeter of an equilateral triangle of side 14 cm is:

(A) 28 cm
(B) 36 cm
(C) 42 cm
(D) 56 cm

Correct Answer: C

Explanation:

Perimeter = 3 × 14 = 42 cm.

Link:

Report Error

Question (16)

QN009683

A puzzle asks: “Can two figures have equal perimeter but unequal area?” The correct response is:

(A) No, never
(B) Yes, always
(C) Yes, sometimes
(D) Impossible to decide

Correct Answer: C

Explanation:

Different figures can have equal perimeter but different areas.

Link:

Report Error

Question (17)

QN009684

If one side of a rectangle increases while the other decreases so that perimeter remains constant, then area:

(A) Always increases
(B) Always decreases
(C) May change
(D) Remains constant

Correct Answer: C

Explanation:

Area depends on the product of length and breadth.

Link:

Report Error

Question (18)

QN009685

A square park has perimeter 100 m. Length of each side is:

(A) 20 m
(B) 25 m
(C) 30 m
(D) 40 m

Correct Answer: B

Explanation:

Side = 100 ÷ 4 = 25 m.

Link:

Report Error

Question (19)

QN009686

Which figure among rectangles with fixed perimeter has maximum area?

(A) Long thin rectangle
(B) Square
(C) Triangle
(D) Circle

Correct Answer: B

Explanation:

Among rectangles, a square gives maximum area.

Link:

Report Error

Question (20)

QN009687

A rectangular garden has perimeter 72 m and breadth 14 m. Its length is:

(A) 18 m
(B) 20 m
(C) 22 m
(D) 24 m

Correct Answer: C

Explanation:

2(l + b) = 72 ⇒ l + b = 36 ⇒ l = 22 m.

Link:

Report Error

Question (11)

Which of the following has the smallest perimeter for the same area?

Explanation:

Link:

Question (12)

A square and an equilateral triangle have the same perimeter of 36 cm. The side of the triangle is:

Explanation:

Link:

Question (13)

A shape made of unit squares has 10 outer edges. Its perimeter is:

Explanation:

Link:

Question (14)

A rectangle has perimeter 50 cm. If its length is 15 cm, its breadth is:

Explanation:

Link:

Question (15)

The perimeter of an equilateral triangle of side 14 cm is:

Explanation:

Link:

Question (16)

A puzzle asks: “Can two figures have equal perimeter but unequal area?” The correct response is:

Explanation:

Link:

Question (17)

If one side of a rectangle increases while the other decreases so that perimeter remains constant, then area:

Explanation:

Link:

Question (18)

A square park has perimeter 100 m. Length of each side is:

Explanation:

Link:

Question (19)

Which figure among rectangles with fixed perimeter has maximum area?

Explanation:

Link:

Question (20)

A rectangular garden has perimeter 72 m and breadth 14 m. Its length is:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY