Test: Lines, Angles & Triangles - 1 - Class 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 

• Here, 6 pairs of perpendicular lines are CB⊥ AB, BC ⊥ CD, ED ⊥ CD, DE⊥ EF, FG⊥ EF and FG ⊥ HG.
• Hence Jyoti made the correct statement..
• 

• The first letter is M. It is made of 4 lines intersecting at 3 points. We can see that none of the angles are right angles. So M don’t have any perpendicular lines.
• The next letter is A. It has 3 lines intersecting at 3 points and no lines are perpendicular. So don't have any perpendicular lines.
• Let us consider T. It has 2 lines which meet at one point. From the letter we can say that the 2 lines are perpendicular. So T has perpendicular lines.
• Now we have H. It 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.
• The last letter is S. It doesn’t have a straight line or any intersection. So it doesn’t have any perpendicular lines.
• So only the letters T and H have perpendicular lines.
• So only 2 of the given letters have perpendicular lines.

• Any angle which is larger than 180o but smaller than 360o is called as a reflex angle.
• Here, the angle shown is larger than 180o but smaller than 360o. 
• Hence, it is a reflex angle.
• Therefore, option C is correct.

• 
• 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.

• Figure A, Figure B and Figure C are the angles that are greater than the right angle.
• Hence the correct answer is option C

• The question asks us to mark the correct option in which the angle formed by the two lines is greater than a right angle which means greater than 90.
• To solve the question we need to move anticlockwise from the horizontal line to the other line and check whether the angle is greater than 90∘ or not.
• So on analysing option A we see that the angle formed between the two lines is 90∘, as the lines are perpendicular.
• The image shows that the two lines are horizontal and vertical.
• On analysing the second option we see that when we move anticlockwise along the line we see that the angle formed is less than 90∘.
• Moving to option C, since the angle is measured anticlockwise so on measuring the angle we see that the angle is present in the 3rd quadrant. The angle formed is less than 90∘ as we move anticlockwise along the horizontal line given in the image.
• In the fourth option we see that the angle formed on moving your hand anti-clockwise along the horizontal line we get an angle which is greater than 90∘ also called obtuse angle.
•  
• So, the correct answer is “Option D”.

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

The correct answer is:

a) One point

Intersecting lines cut each other at exactly one point.