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Question (31)

QN0018830

If a rhombus has side length 18 cm, its perimeter equals:

(A) 36 cm
(B) 54 cm
(C) 72 cm
(D) 90 cm

Correct Answer: C

Explanation:

Perimeter = 4 × 18 = 72 cm.

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Question (32)

QN0018831

The diagonals of a rhombus divide each other into:

(A) Equal halves
(B) Unequal parts
(C) Three parts
(D) Four parts

Correct Answer: A

Explanation:

Diagonals bisect each other.

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Question (33)

QN0018832

In a rhombus, if BO = 7 cm, then BD =

(A) 7 cm
(B) 10 cm
(C) 14 cm
(D) 21 cm

Correct Answer: C

Explanation:

BD = 2 × BO = 14 cm.

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Question (34)

QN0018833

Which of the following is always a rhombus?

(A) Rectangle
(B) Square
(C) Trapezium
(D) Kite

Correct Answer: B

Explanation:

Every square is a rhombus.

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Question (35)

QN0018834

If one angle of a rhombus is 150°, then the other distinct angle is:

(A) 20°
(B) 25°
(C) 30°
(D) 40°

Correct Answer: C

Explanation:

Adjacent angle = 180° − 150° = 30°.

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Question (36)

QN0018835

A rhombus has all sides equal. If one side is x cm and perimeter is 52 cm, then x =

(A) 11 cm
(B) 12 cm
(C) 13 cm
(D) 14 cm

Correct Answer: C

Explanation:

x = 52 ÷ 4 = 13 cm.

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Question (37)

QN0018836

Which property is common to both a square and a rhombus?

(A) Diagonals are always equal
(B) All sides are equal
(C) All angles are equal
(D) Adjacent sides are unequal

Correct Answer: B

Explanation:

Both have all sides equal.

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Question (38)

QN0018837

In a rhombus, one angle is five times its adjacent angle. The smaller angle is:

(A) 30°
(B) 36°
(C) 45°
(D) 60°

Correct Answer: A

Explanation:

x + 5x = 180°, x = 30°.

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Question (39)

QN0018838

If AC = 24 cm in a rhombus and O is the midpoint of AC, then OC =

(A) 6 cm
(B) 8 cm
(C) 12 cm
(D) 24 cm

Correct Answer: C

Explanation:

OC = 24 ÷ 2 = 12 cm.

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Question (40)

QN0018839

A quadrilateral has all sides equal and diagonals that bisect each other at right angles. It is a:

(A) Rhombus
(B) Trapezium
(C) Kite
(D) Rectangle

Correct Answer: A

Explanation:

These are the properties of a rhombus.

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Question (31)

If a rhombus has side length 18 cm, its perimeter equals:

Explanation:

Link:

Question (32)

The diagonals of a rhombus divide each other into:

Explanation:

Link:

Question (33)

In a rhombus, if BO = 7 cm, then BD =

Explanation:

Link:

Question (34)

Which of the following is always a rhombus?

Explanation:

Link:

Question (35)

If one angle of a rhombus is 150°, then the other distinct angle is:

Explanation:

Link:

Question (36)

A rhombus has all sides equal. If one side is x cm and perimeter is 52 cm, then x =

Explanation:

Link:

Question (37)

Which property is common to both a square and a rhombus?

Explanation:

Link:

Question (38)

In a rhombus, one angle is five times its adjacent angle. The smaller angle is:

Explanation:

Link:

Question (39)

If AC = 24 cm in a rhombus and O is the midpoint of AC, then OC =

Explanation:

Link:

Question (40)

A quadrilateral has all sides equal and diagonals that bisect each other at right angles. It is a:

Explanation:

Link:

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