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Question (11)

QN0018850

If the angles of a quadrilateral are 90°, 80°, 110° and x°, then x equals:

(A) 70°
(B) 75°
(C) 80°
(D) 85°

Correct Answer: C

Explanation:

x = 360° − (90° + 80° + 110°) = 80°.

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Question (12)

QN0018851

In a rectangle, each interior angle measures:

(A) 45°
(B) 60°
(C) 90°
(D) 120°

Correct Answer: C

Explanation:

All angles of a rectangle are right angles.

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Question (13)

QN0018852

A quadrilateral has angles 95°, 85°, 105° and 75°. It is:

(A) A valid quadrilateral
(B) Not a quadrilateral
(C) A triangle
(D) A pentagon

Correct Answer: A

Explanation:

Sum = 360°, so it is a valid quadrilateral.

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Question (14)

QN0018853

If one angle of a parallelogram is 125°, the opposite angle is:

(A) 55°
(B) 65°
(C) 125°
(D) 135°

Correct Answer: C

Explanation:

Opposite angles of a parallelogram are equal.

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Question (15)

QN0018854

Which quadrilateral has all sides equal and all angles equal?

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

Correct Answer: B

Explanation:

A square has equal sides and equal angles.

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Question (16)

QN0018855

A quadrilateral has angles 70°, 110°, 70° and 110°. It is most likely a:

(A) Parallelogram
(B) Trapezium
(C) Kite
(D) Pentagon

Correct Answer: A

Explanation:

Opposite angles are equal.

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Question (17)

QN0018856

If a quadrilateral is divided into two triangles, the total angle sum obtained is:

(A) 180°
(B) 270°
(C) 360°
(D) 540°

Correct Answer: C

Explanation:

180° + 180° = 360°.

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Question (18)

QN0018857

In a rhombus, if one angle is 72°, the adjacent angle is:

(A) 72°
(B) 98°
(C) 108°
(D) 118°

Correct Answer: C

Explanation:

Adjacent angle = 180° − 72° = 108°.

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Question (19)

QN0018858

Which quadrilateral always has equal diagonals?

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

Correct Answer: A

Explanation:

Diagonals of a rectangle are equal.

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Question (20)

QN0018859

The number of diagonals in a quadrilateral is:

(A) 1
(B) 2
(C) 3
(D) 4

Correct Answer: B

Explanation:

A quadrilateral has two diagonals.

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Question (11)

If the angles of a quadrilateral are 90°, 80°, 110° and x°, then x equals:

Explanation:

Link:

Question (12)

In a rectangle, each interior angle measures:

Explanation:

Link:

Question (13)

A quadrilateral has angles 95°, 85°, 105° and 75°. It is:

Explanation:

Link:

Question (14)

If one angle of a parallelogram is 125°, the opposite angle is:

Explanation:

Link:

Question (15)

Which quadrilateral has all sides equal and all angles equal?

Explanation:

Link:

Question (16)

A quadrilateral has angles 70°, 110°, 70° and 110°. It is most likely a:

Explanation:

Link:

Question (17)

If a quadrilateral is divided into two triangles, the total angle sum obtained is:

Explanation:

Link:

Question (18)

In a rhombus, if one angle is 72°, the adjacent angle is:

Explanation:

Link:

Question (19)

Which quadrilateral always has equal diagonals?

Explanation:

Link:

Question (20)

The number of diagonals in a quadrilateral is:

Explanation:

Link:

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