Class 7 The Triangle And Its Properties CBSE Questions & Answers

Class 7 · The Triangle And Its Properties

This is Mathematics Class 7 The Triangle and its Properties CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The lengths of two sides of a triangle are 12 cm and 15 cm. Between what two measures should the length of the third side fall?
  • A
    None of these
  • B
    greater than 2 and less than 27 cm
    Correct
  • C
    greater than 2 and less than 30 cm
  • D
    greater than 9 and less than 27 cm
2
An _______ is formed when lines or line segments meet.
  • A
    line segment
  • B
    angle
    Correct
  • C
    ray
  • D
    line
3
Determine whether the triangle whose lengths of sides are 3 cm, 4 cm, 5 cm is a ______________.
  • A
    None of these
  • B
    acute-angled
  • C
    right-angled
    Correct
  • D
    obtuse-angled
4
A median wholly lie in the __________ of the triangle.
  • A
    interior
    Correct
  • B
    exterior
  • C
    on
  • D
    None of these
5
The sum of an exterior angle of a triangle and its adjacent interior angle is ________.
  • A
    180\(^\circ \)
    Correct
  • B
    140\(^\circ \)
  • C
    100\(^\circ \)
  • D
    120\(^\circ \)
6
In an isosceles triangle base angles opposite to the equal sides are __________.
  • A
    None of these
  • B
    equal
    Correct
  • C
    not equal
  • D
    similar
7
The side opposite to the right angle is called the _________ of the right-angled triangle.
  • A
    perpendicular
  • B
    hypotenuse
    Correct
  • C
    base
  • D
    None of these
8
The three angles of a triangle are in the ratio 1:2:1. Find all the angles of the triangle.
  • A
    None of these
  • B
    45\(^\circ \), 90\(^\circ \), 45\(^\circ \)
    Correct
  • C
    60\(^\circ \), 90\(^\circ \), 30\(^\circ \)
  • D
    40\(^\circ \), 90\(^\circ \), 50\(^\circ \)
9
The three angles of a triangle are in the ratio 3:2:1. Find all the angles of the triangle.
  • A
    None of these
  • B
    90\(^\circ \), 60\(^\circ \), 30\(^\circ \)
    Correct
  • C
    60\(^\circ \), 90\(^\circ \), 40\(^\circ \)
  • D
    50\(^\circ \), 90\(^\circ \), 30\(^\circ \)
10
The three angles of a triangle are in the ratio 4:5:1. Find all the angles of the triangle.
  • A
    None of these
  • B
    50\(^\circ \), 90\(^\circ \), 40\(^\circ \)
  • C
    62\(^\circ \), 90\(^\circ \), 28\(^\circ \)
  • D
    72\(^\circ \), 90\(^\circ \), 18\(^\circ \)
    Correct
11
In a \(\triangle \)ABC, \(\angle \)A = 35\(^\circ \) and \(\angle \)B = 65\(^\circ \), then the measure of \(\angle \)C is
  • A
    None of these
  • B
    90\(^\circ \)
  • C
    100\(^\circ \)
  • D
    80\(^\circ \)
    Correct
12
In a \(\triangle \)ABC, \(\angle \)A = 40\(^\circ \) and \(\angle \)B = 65\(^\circ \), then the measure of \(\angle \)C is
  • A
    95\(^\circ \)
  • B
    75\(^\circ \)
    Correct
  • C
    None of these
  • D
    100\(^\circ \)
13
In a \(\triangle \)XYZ, \(\angle \)X = 60\(^\circ \) and \(\angle \)Z = 65\(^\circ \), then the measure of \(\angle \)Y is
  • A
    100\(^\circ \)
  • B
    65\(^\circ \)
    Correct
  • C
    95\(^\circ \)
  • D
    None of these
14
In a \(\triangle \)PQR, \(\angle \)Q = 50\(^\circ \) and \(\angle \)R = 70\(^\circ \), then the measure of \(\angle \)P is
  • A
    None of these
  • B
    90\(^\circ \)
  • C
    60\(^\circ \)
    Correct
  • D
    100\(^\circ \)
15
In a \(\triangle \)PQR, \(\angle \)P = 70\(^\circ \) and \(\angle \)R = 60\(^\circ \), then the measure of \(\angle \)Q is
  • A
    90\(^\circ \)
  • B
    None of these
  • C
    50\(^\circ \)
    Correct
  • D
    100\(^\circ \)