Test: Lines, Angles & Triangles - 1 - Grade 5 MCQ

• As shown in above figures, figure 2, figure 4 and figure 5 are the figures which has  the pair of parallel lines
• Hence the correct answer is option B 

A straight angle is formed when a line is extended in a straight direction. It looks like a straight line and measures 180°.

• 90° is a right angle, which forms an "L" shape.
• 45° is an acute angle, which is smaller than a right angle.
• 360° is a complete angle, which forms a full circle.

Thus, the correct answer is A) 180°.

H has 2 parallel lines intersected by a line. From the figure we can say that the intersected line is perpendicular to the parallel lines. So H also has perpendicular lines.So letters H has 2 perpendicular lines.

• 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.
• Hence the ∠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. 

An obtuse angle is an angle whose measure is greater than 90 degrees but less than 180 degrees.

• Intersecting lines are lines that cross each other.
• When two lines intersect, they meet at exactly one point.
• This point is called the point of intersection.
• Thus, the correct answer is A: One point.