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Question (1)

QN0018720

The sum of the interior angles of any quadrilateral is:

(A) 180°
(B) 270°
(C) 360°
(D) 540°

Correct Answer: C

Explanation:

Sum of interior angles of a quadrilateral is 360°.

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Question (2)

QN0018721

Which statement correctly describes the angle sum property of a quadrilateral?

(A) Opposite angles are equal
(B) Sum of all interior angles is 360°
(C) Adjacent angles are equal
(D) Sum of two angles is 180°

Correct Answer: B

Explanation:

The sum of all interior angles of a quadrilateral is always 360°.

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Question (3)

QN0018722

If three angles of a quadrilateral are 80°, 95°, and 105°, the fourth angle is:

(A) 70°
(B) 80°
(C) 90°
(D) 120°

Correct Answer: B

Explanation:

Fourth angle = 360° − (80° + 95° + 105°) = 80°.

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Question (4)

QN0018723

The fourth angle of a quadrilateral whose other three angles are 60°, 100°, and 120° is:

(A) 60°
(B) 70°
(C) 80°
(D) 90°

Correct Answer: C

Explanation:

Fourth angle = 360° − 280° = 80°.

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Question (5)

QN0018724

A quadrilateral has angles 90°, 90°, 70°, and x°. Find x.

(A) 90°
(B) 100°
(C) 110°
(D) 120°

Correct Answer: C

Explanation:

x = 360° − 250° = 110°.

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Question (6)

QN0018725

If the angles of a quadrilateral are 75°, 85°, 95°, and x°, then x equals:

(A) 95°
(B) 100°
(C) 105°
(D) 110°

Correct Answer: C

Explanation:

x = 360° − 255° = 105°.

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Question (7)

QN0018726

Three angles of a quadrilateral are equal to 90° each. The fourth angle is:

(A) 60°
(B) 90°
(C) 120°
(D) 180°

Correct Answer: B

Explanation:

Fourth angle = 360° − 270° = 90°.

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Question (8)

QN0018727

A quadrilateral has angles 120°, 80°, 70°, and x°. Find x.

(A) 80°
(B) 85°
(C) 90°
(D) 95°

Correct Answer: C

Explanation:

x = 360° − 270° = 90°.

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Question (9)

QN0018728

The angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. The smallest angle is:

(A) 30°
(B) 36°
(C) 45°
(D) 60°

Correct Answer: B

Explanation:

Total parts = 10, one part = 36°.

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Question (10)

QN0018729

The angles of a quadrilateral are in the ratio 2 : 3 : 4 : 6. The largest angle is:

(A) 96°
(B) 108°
(C) 120°
(D) 144°

Correct Answer: D

Explanation:

One part = 24°, largest angle = 6 × 24° = 144°.

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Question (1)

The sum of the interior angles of any quadrilateral is:

Explanation:

Link:

Question (2)

Which statement correctly describes the angle sum property of a quadrilateral?

Explanation:

Link:

Question (3)

If three angles of a quadrilateral are 80°, 95°, and 105°, the fourth angle is:

Explanation:

Link:

Question (4)

The fourth angle of a quadrilateral whose other three angles are 60°, 100°, and 120° is:

Explanation:

Link:

Question (5)

A quadrilateral has angles 90°, 90°, 70°, and x°. Find x.

Explanation:

Link:

Question (6)

If the angles of a quadrilateral are 75°, 85°, 95°, and x°, then x equals:

Explanation:

Link:

Question (7)

Three angles of a quadrilateral are equal to 90° each. The fourth angle is:

Explanation:

Link:

Question (8)

A quadrilateral has angles 120°, 80°, 70°, and x°. Find x.

Explanation:

Link:

Question (9)

The angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. The smallest angle is:

Explanation:

Link:

Question (10)

The angles of a quadrilateral are in the ratio 2 : 3 : 4 : 6. The largest angle is:

Explanation:

Link:

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