CBSE Class 7 Mathematics A Tale of Three Intersecting Lines MCQs Set A

Question. A triangle has how many corner points, tell me?
(a) Two
(b) Four
(c) Three
(d) Five

Answer: C

Question. The corner points of a triangle are called what, tell me?
(a) Sides
(b) Angles
(c) Vertex
(d) Line segment

Answer: C

Question. A triangle where all the sides are of equal lengths is called what?
(a) Isosceles triangle
(b) Scalene triangle
(c) Equilateral triangle
(d) Right triangle

Answer: C

Question. What is the sum of the interior angles of any triangle?
(a) 360°
(b) 270°
(c) 180°
(d) 90°

Answer: C

Question. If a triangle has two sides equal length, then this triangle is called?
(a) Scalene
(b) Equilateral
(c) Isosceles
(d) Acute-angled

Answer: C

Question. To construct a triangle quickly when only side lengths are given, we use which construction tool with a ruler?
(a) Only marked ruler
(b) Set square
(c) Compass
(d) Protractor

Answer: C

Question. For a set of three lengths to form a triangle, the longest length must be how much compared to the sum of the other two lengths?
(a) Equal to the sum
(b) Greater than the sum
(c) Smaller than the sum
(d) Double the sum

Answer: C

Question. If side lengths are 10 cm, 15 cm, and 30 cm, triangle existence is possible or not possible?
(a) Possible
(b) Always possible
(c) Not possible
(d) Cannot say

Answer: C

Question. What does the triangle inequality rule state?
(a) One side must be the longest
(b) Each angle must be less than 90°
(c) Each side must be longer than the sum of the other two
(d) Each side must be shorter than the sum of the other two

Answer: D

Question. The sum of the all three angles in any triangle is always how many degrees?
(a) 90 degrees
(b) 360 degrees
(c) 180 degrees
(d) 270 degrees

Answer: C

Question. The perpendicular line segment from a vertex to the opposite side of a triangle is called what?
(a) Angle bisector
(b) Median
(c) Altitude
(d) Height of base

Answer: C

Question. A triangle having all three angles as acute angles, this triangle is called what?
(a) Right-angled triangle
(b) Obtuse-angled triangle
(c) Acute-angled triangle
(d) Isosceles triangle

Answer: C

Question. A triangle is what kind of shape, tell me?
(a) Open figure
(b) Square shape
(c) Most basic closed shape
(d) Curved figure

Answer: C

Question. Which triangle has all sides equal?
(a) Scalene
(b) Right-angled
(c) Equilateral
(d) Isosceles

Answer: C

Question. A triangle has how many corner points, tell me?
(a) Two
(b) Four
(c) Three
(d) Five

Answer: C

Question. The corner points of a triangle are called what, tell me?
(a) Sides
(b) Angles
(c) Vertex
(d) Line segment

Answer: C

Question. The three line segments joining pairs of vertices are called what?
(a) Angles
(b) Perpendiculars
(c) Sides of the triangle
(d) Medians

Answer: C

Question. What tool helps construct a triangle accurately when sides are given?
(a) Divider
(b) Compass
(c) Set square
(d) Graph paper

Answer: B

Question. In △ABC, the angles are ∠ CAB, ∠ ABC, and ∠ BCA. We simply call them?
(a) ∠ C, \angle A, \angle B
(b) ∠ CAB, \angle BCA, \angle ACB
(c) ∠ A, \angle B, \angle C
(d) ∠ 1, \angle 2, \angle 3

Answer: C

Question. A triangle where all the sides are of equal lengths is called what kind of triangle?
(a) Isosceles triangle
(b) Scalene triangle
(c) Equilateral triangle
(d) Right triangle

Answer: C