Lines And Angles CBSE Questions & Answers

Lines And Angles

This is Mathematics Class 09 Lines and Angles CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
In the adjoining figure, if m \(\parallel \) n, then \(\angle \)4 + \(\angle \)7 is equal to –
Question 1 figure 1
  • A
    180\(^0\)
    Correct
  • B
    90\(^0\)
  • C
    150\(^0\)
  • D
    120\(^0\)
2
In the adjoining figure, m \(\parallel \) n, if \(\angle \)1 = 50\(^0\), then \(\angle \)2 is equal to –
Question 2 figure 1
  • A
    50\(^0\)
  • B
    120\(^0\)
  • C
    130\(^0\)
    Correct
  • D
    40\(^0\)
3
In the adjoining figure, m \(\parallel \) n. If \(\angle \)a : \(\angle \)b = 2 : 3, then the measure of \(\angle \)h is –
Question 3 figure 1
  • A
    72\(^0\)
  • B
    150\(^0\)
  • C
    120\(^0\)
  • D
    108\(^0\)
    Correct
4
In the adjoining figure, AB \(\parallel \) CD and AB \(\parallel \) EF. The value of x is :-
Question 4 figure 1
  • A
    60\(^0\)
    Correct
  • B
    50\(^0\)
  • C
    70\(^0\)
  • D
    40\(^0\)
5
In the adjoining figure, if AB \(\parallel \) DE, then the measure of \(\angle \)ACD is :-
Question 5 figure 1
  • A
    100\(^0\)
    Correct
  • B
    80\(^0\)
  • C
    90\(^0\)
  • D
    70\(^0\)
6
In the adjoining figure , the value of x is :-
Question 6 figure 1
  • A
    40\(^0\)
    Correct
  • B
    45\(^0\)
  • C
    30\(^0\)
  • D
    35\(^0\)
7
In the adjoining figure, the measure of \(\angle \)AED is :-
Question 7 figure 1
  • A
    140\(^0\)
  • B
    120\(^0\)
  • C
    130\(^0\)
    Correct
  • D
    110\(^0\)
8
In the adjoining figure, if QP \(\parallel \) RT, then x is equal to –
Question 8 figure 1
  • A
    70
  • B
    65
  • C
    55
  • D
    75
    Correct
9
In the adjoining figure, l \(\parallel \) m then \(\angle \)x is equal to –
Question 9 figure 1
  • A
    61\(^0\)
  • B
    56\(^0\)
    Correct
  • C
    51\(^0\)
  • D
    66\(^0\)
10
A, B, C are the three angles of a triangle. If A – B = 15\(^0\) and B – C = 30\(^0\), then angles A, B, C are :-
  • A
    35\(^0\), 65\(^0\), 80\(^0\)
  • B
    80\(^0\), 35\(^0\), 65\(^0\)
  • C
    65\(^0\), 80\(^0\), 35\(^0\)
  • D
    80\(^0\), 65\(^0\), 35\(^0\)
    Correct
11
The angles of a triangle in ascending order are x, y, z and y – x = z – y = 10\(^0\). The smallest angles is :-
  • A
    70\(^0\)
  • B
    6\(^0\)
  • C
    50\(^0\)
    Correct
  • D
    40\(^0\)
12
In the adjoining figure PQ \(\parallel \) SR. If QP \( \bot \) SP, then the values of x and y are :-
Question 12 figure 1
  • A
    x = 43\(^0\), y = 47\(^0\)
  • B
    x = 53\(^0\), y = 37\(^0\)
    Correct
  • C
    x = 63\(^0\), y = 27\(^0\)
  • D
    x = 37\(^0\), y – 53\(^0\)
13
In the adjoining figure, the three lines AB, CD and EF all pass through the point O. If \(\angle \)EOB = 90 and x : y = 2 : 1 then \(\angle \)BOD and \(\angle \)COE :-
Question 13 figure 1
  • A
    30, 60
    Correct
  • B
    45, 45
  • C
    80, 20
  • D
    60, 60
14
In the adjoining figure \(\angle \)QPR = 62\(^0\) and \(\angle \)PRQ = 64\(^0\). If OQ and OR and bisectors of \(\angle \)PQR and \(\angle \) PRQ respectively, then \(\angle \)OQR and \(\angle \)QOR :-
Question 14 figure 1
  • A
    121, 20
  • B
    26, 124
  • C
    27, 121
    Correct
  • D
    20, 80
15
In the adjoining figure, AB \(\parallel \) CD and AB \(\parallel \) EF. If EA \( \bot \) BA and \(\angle \)BEF = 55\(^0\), then the values of x, y and z :-
Question 15 figure 1
  • A
    35, 125, 120
  • B
    60, 60, 60
  • C
    125, 125, 35
    Correct
  • D
    120, 130, 25