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Question (11)

QN0018810

If one angle of a rhombus is 95°, the acute angle is:

(A) 75°
(B) 80°
(C) 85°
(D) 95°

Correct Answer: C

Explanation:

Acute angle = 180° − 95° = 85°.

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Question (12)

QN0018811

The diagonals of a rhombus intersect at O. If AO = 6 cm, then AC =

(A) 6 cm
(B) 12 cm
(C) 18 cm
(D) 24 cm

Correct Answer: B

Explanation:

AC = 2 × AO = 12 cm.

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Question (13)

QN0018812

In a rhombus, BO = 9 cm where O is the intersection point of diagonals. Then BD =

(A) 9 cm
(B) 12 cm
(C) 18 cm
(D) 27 cm

Correct Answer: C

Explanation:

BD = 2 × BO = 18 cm.

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Question (14)

QN0018813

If a rhombus has side 11 cm, the length of the opposite side is:

(A) 11 cm
(B) 22 cm
(C) 5.5 cm
(D) Cannot be determined

Correct Answer: A

Explanation:

All sides of a rhombus are equal.

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Question (15)

QN0018814

Which property is unique to a rhombus among parallelograms?

(A) Opposite sides are parallel
(B) Opposite angles are equal
(C) All sides are equal
(D) Adjacent angles are supplementary

Correct Answer: C

Explanation:

A rhombus has all sides equal.

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Question (16)

QN0018815

In a rhombus, adjacent angles are x° and 2x°. Find x.

(A) 45°
(B) 60°
(C) 75°
(D) 90°

Correct Answer: B

Explanation:

x + 2x = 180°, so x = 60°.

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Question (17)

QN0018816

The angles of a rhombus are in the ratio 2 : 3. The smaller angle is:

(A) 60°
(B) 72°
(C) 90°
(D) 108°

Correct Answer: B

Explanation:

2x + 3x = 180°, x = 36°, smaller angle = 72°.

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Question (18)

QN0018817

A rhombus has side length 14 cm. What is its perimeter?

(A) 42 cm
(B) 56 cm
(C) 28 cm
(D) 70 cm

Correct Answer: B

Explanation:

Perimeter = 4 × 14 = 56 cm.

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Question (19)

QN0018818

In a rhombus, one angle is 44°. The largest angle is:

(A) 44°
(B) 90°
(C) 136°
(D) 156°

Correct Answer: C

Explanation:

Largest angle = 180° − 44° = 136°.

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Question (20)

QN0018819

If the diagonals of a rhombus intersect at O and AC = 20 cm, then AO =

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

Correct Answer: B

Explanation:

AO = AC ÷ 2 = 10 cm.

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Question (11)

If one angle of a rhombus is 95°, the acute angle is:

Explanation:

Link:

Question (12)

The diagonals of a rhombus intersect at O. If AO = 6 cm, then AC =

Explanation:

Link:

Question (13)

In a rhombus, BO = 9 cm where O is the intersection point of diagonals. Then BD =

Explanation:

Link:

Question (14)

If a rhombus has side 11 cm, the length of the opposite side is:

Explanation:

Link:

Question (15)

Which property is unique to a rhombus among parallelograms?

Explanation:

Link:

Question (16)

In a rhombus, adjacent angles are x° and 2x°. Find x.

Explanation:

Link:

Question (17)

The angles of a rhombus are in the ratio 2 : 3. The smaller angle is:

Explanation:

Link:

Question (18)

A rhombus has side length 14 cm. What is its perimeter?

Explanation:

Link:

Question (19)

In a rhombus, one angle is 44°. The largest angle is:

Explanation:

Link:

Question (20)

If the diagonals of a rhombus intersect at O and AC = 20 cm, then AO =

Explanation:

Link:

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