Lines, Angles & Triangles - 1 - Free MCQ Practice Test with solutions,

• In the provided figures, figure 2, figure 4, and figure 5 each contain a pair of parallel lines.
• Therefore, the correct answer is option C.

A straight angle is formed when two rays point in exactly opposite directions, forming a straight line.

By definition, a straight angle measures 180°.

Hence the correct option is A: 180°.

The letter "H" has two vertical lines and one horizontal line joining them.

The horizontal line is perpendicular to each of the two vertical lines, so there are two perpendicular relationships.

Therefore, the correct answer is 2 (Option C).

• The angle shown is a reflex angle. Here’s why:

• A reflex angle is larger than 180° but smaller than 360°.
• The angle in the image fits this description, being more than 180° and less than 360°.
• Therefore, it is classified as a reflex angle.
• Therefore, option C is correct.

• To determine the angle, note that each hour mark on a clock represents 30 degrees (360 degrees/12 hours).
• At 3:25, the minute hand is at the 5th mark (25 minutes), meaning 150 degrees (5 marks x 30 degrees).
• The hour hand moves 30 degrees per hour, plus 0.5 degrees per minute. At 3:25, it has moved 102.5 degrees
• (3 x 30 + 25 x 0.5).
• The angle between the hands is 150 - 102.5 = 47.5 degrees, which is acute.
• As we can see , it is an acute angle

• Measure of angle Q is more thaan 90º but less than 180º.
• An angle that measures more than 90° and less than 180° is called an obtuse angle.
• Therefore, angle Q is an obtuse angle.

An obtuse angle is an angle which is greater than 90° and less than 180°. In other words, an obtuse angle is between a right angle and a straight angle.

A right angle forms a perfect "L" shape and measures 90 degrees. Any angle greater than this is called an obtuse angle, which appears more open or wider than a right angle. 

Definition: An obtuse angle measures more than 90^° and less than 180^°.

Therefore, the correct answer is Obtuse.

• Acute: measures less than 90^°.
• Right: measures exactly 90^°.

Two lines are called intersecting when they meet at a common point.

Two distinct straight lines in a plane can meet at at most one point; coincident lines share infinitely many points and parallel lines have none.

Therefore, intersecting lines cut each other at one point.