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Question (1)

QN0016147

An equilateral triangle is a triangle in which:

(A) All angles are equal
(B) Two sides are equal
(C) All sides are equal
(D) No sides are equal

Correct Answer: C

Explanation:

Equilateral triangles have all three sides equal.

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Question (2)

QN0016148

Which of the following best defines an equilateral triangle?

(A) A triangle with three equal sides
(B) A triangle with two equal sides
(C) A triangle with one right angle
(D) A triangle with three unequal sides

Correct Answer: A

Explanation:

Definition of an equilateral triangle.

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Question (3)

QN0016149

If each side of an equilateral triangle is 5 cm, what is its perimeter?

(A) 10 cm
(B) 15 cm
(C) 20 cm
(D) 25 cm

Correct Answer: B

Explanation:

5 + 5 + 5 = 15 cm

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Question (4)

QN0016150

An equilateral triangle has sides of length 12 cm. Its perimeter is:

(A) 24 cm
(B) 30 cm
(C) 36 cm
(D) 48 cm

Correct Answer: C

Explanation:

12 × 3 = 36 cm

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Question (5)

QN0016151

Which instrument helps construct an equilateral triangle efficiently?

(A) Divider only
(B) Compass
(C) Eraser
(D) Scale only

Correct Answer: B

Explanation:

A compass is used to draw equal-radius arcs.

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Question (6)

QN0016152

In constructing an equilateral triangle of side 4 cm, the radius of each arc is:

(A) 2 cm
(B) 4 cm
(C) 6 cm
(D) 8 cm

Correct Answer: B

Explanation:

Radius equals the side length.

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Question (7)

QN0016153

While constructing an equilateral triangle of side 6 cm, the distance between the centres of the two arcs is:

(A) 3 cm
(B) 6 cm
(C) 9 cm
(D) 12 cm

Correct Answer: B

Explanation:

The base length is 6 cm.

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Question (8)

QN0016154

A triangle has sides 8 cm, 8 cm and 8 cm. It is:

(A) Scalene
(B) Isosceles only
(C) Equilateral
(D) Right-angled

Correct Answer: C

Explanation:

All three sides are equal.

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Question (9)

QN0016155

Which of the following sets of lengths forms an equilateral triangle?

(A) 3 cm, 3 cm, 4 cm
(B) 5 cm, 5 cm, 5 cm
(C) 6 cm, 7 cm, 6 cm
(D) 4 cm, 5 cm, 6 cm

Correct Answer: B

Explanation:

All three sides are equal.

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Question (10)

QN0016156

If an equilateral triangle has perimeter 27 cm, each side measures:

(A) 6 cm
(B) 7 cm
(C) 8 cm
(D) 9 cm

Correct Answer: D

Explanation:

27 ÷ 3 = 9 cm

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Question (1)

An equilateral triangle is a triangle in which:

Explanation:

Link:

Question (2)

Which of the following best defines an equilateral triangle?

Explanation:

Link:

Question (3)

If each side of an equilateral triangle is 5 cm, what is its perimeter?

Explanation:

Link:

Question (4)

An equilateral triangle has sides of length 12 cm. Its perimeter is:

Explanation:

Link:

Question (5)

Which instrument helps construct an equilateral triangle efficiently?

Explanation:

Link:

Question (6)

In constructing an equilateral triangle of side 4 cm, the radius of each arc is:

Explanation:

Link:

Question (7)

While constructing an equilateral triangle of side 6 cm, the distance between the centres of the two arcs is:

Explanation:

Link:

Question (8)

A triangle has sides 8 cm, 8 cm and 8 cm. It is:

Explanation:

Link:

Question (9)

Which of the following sets of lengths forms an equilateral triangle?

Explanation:

Link:

Question (10)

If an equilateral triangle has perimeter 27 cm, each side measures:

Explanation:

Link:

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