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Question (1)

QN0016227

An exterior angle of a triangle is formed by:

(A) Two interior angles
(B) Extending one side of a triangle and the adjacent side
(C) Three sides together
(D) Two parallel lines

Correct Answer: B

Explanation:

An exterior angle is formed between an extended side and the adjacent side.

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Question (2)

QN0016228

Which statement correctly defines an exterior angle of a triangle?

(A) Angle inside a triangle
(B) Angle formed by two medians
(C) Angle formed between a side and the extension of an adjacent side
(D) Angle between two altitudes

Correct Answer: C

Explanation:

Definition of exterior angle.

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Question (3)

QN0016229

If the interior angle adjacent to an exterior angle is 65°, the exterior angle measures:

(A) 105°
(B) 115°
(C) 125°
(D) 135°

Correct Answer: B

Explanation:

180° − 65° = 115°.

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Question (4)

QN0016230

A triangle has an interior angle of 80° at a vertex. The corresponding exterior angle is:

(A) 90°
(B) 100°
(C) 110°
(D) 120°

Correct Answer: B

Explanation:

180° − 80° = 100°.

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Question (5)

QN0016231

If the two remote interior angles of a triangle are 50° and 60°, the exterior angle equals:

(A) 100°
(B) 110°
(C) 120°
(D) 130°

Correct Answer: B

Explanation:

Exterior angle = 50° + 60° = 110°.

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Question (6)

QN0016232

The exterior angle of a triangle is equal to:

(A) Sum of all interior angles
(B) Difference of remote interior angles
(C) Sum of the two remote interior angles
(D) Twice the adjacent angle

Correct Answer: C

Explanation:

Exterior angle property.

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Question (7)

QN0016233

If an exterior angle measures 140° and one remote interior angle is 55°, the other remote interior angle is:

(A) 75°
(B) 80°
(C) 85°
(D) 90°

Correct Answer: C

Explanation:

140° − 55° = 85°.

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Question (8)

QN0016234

An exterior angle and its adjacent interior angle form a:

(A) Right angle
(B) Straight angle
(C) Acute angle
(D) Reflex angle

Correct Answer: B

Explanation:

Their sum is 180°.

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Question (9)

QN0016235

If an interior angle is 92°, the corresponding exterior angle is:

(A) 78°
(B) 82°
(C) 88°
(D) 98°

Correct Answer: C

Explanation:

180° − 92° = 88°.

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Question (10)

QN0016236

Which of the following pairs can represent an interior angle and its exterior angle?

(A) 70°, 100°
(B) 60°, 130°
(C) 45°, 135°
(D) 80°, 80°

Correct Answer: C

Explanation:

45° + 135° = 180°.

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Question (1)

An exterior angle of a triangle is formed by:

Explanation:

Link:

Question (2)

Which statement correctly defines an exterior angle of a triangle?

Explanation:

Link:

Question (3)

If the interior angle adjacent to an exterior angle is 65°, the exterior angle measures:

Explanation:

Link:

Question (4)

A triangle has an interior angle of 80° at a vertex. The corresponding exterior angle is:

Explanation:

Link:

Question (5)

If the two remote interior angles of a triangle are 50° and 60°, the exterior angle equals:

Explanation:

Link:

Question (6)

The exterior angle of a triangle is equal to:

Explanation:

Link:

Question (7)

If an exterior angle measures 140° and one remote interior angle is 55°, the other remote interior angle is:

Explanation:

Link:

Question (8)

An exterior angle and its adjacent interior angle form a:

Explanation:

Link:

Question (9)

If an interior angle is 92°, the corresponding exterior angle is:

Explanation:

Link:

Question (10)

Which of the following pairs can represent an interior angle and its exterior angle?

Explanation:

Link:

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