Triangles CBSE Questions & Answers

Triangles

This is Mathematics Class 09 Triangles 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, the rule by which \(\triangle ABC \cong \triangle ADC\)
Question 1 figure 1
  • A
    RHS
  • B
    AAS
  • C
    SSS
    Correct
  • D
    SAS
2
In the adjoining figure, BC = AD, CA\( \bot \)AB and BD\( \bot \)AB. The rule by which \(\triangle ABC \cong \triangle BAD\)is
Question 2 figure 1
  • A
    RHS
    Correct
  • B
    SSS
  • C
    SAS
  • D
    ASA
3
In the adjoining figure, AB = AC and AD\( \bot \)BC. The rule by which \(\triangle ABD \cong \triangle ACD\)is
Question 3 figure 1
  • A
    ASA
  • B
    RHS
    Correct
  • C
    SSS
  • D
    SAS
4
In the adjoining figure, AB = AC and AD is bisector of \(\angle \)A. The rule by which \(\triangle ABD \cong \triangle ACD\)
Question 4 figure 1
  • A
    ASA
  • B
    AAS
  • C
    SSS
  • D
    SAS
    Correct
5
In the adjoining figure, \(\angle \)B = \(\angle \)C and AD\( \bot \)BC. The rule by which \(\triangle ABD \cong \triangle ADC\)
Question 5 figure 1
  • A
    ASA
  • B
    RHS
  • C
    SAS
  • D
    AAS
    Correct
6
In the adjoining figure, AB = FC, EF = BD and \(\angle \)AFE = \(\angle \)CBD. Then the rule by which \(\triangle AFE \cong \triangle CBD\)
Question 6 figure 1
  • A
    ASA
  • B
    SSS
  • C
    SAS
    Correct
  • D
    AAS
7
In the adjoining figure, AB = AC and AD is median of \(\triangle ABC\), then \(\angle \)ADC is equal to
Question 7 figure 1
  • A
    \(90^\circ \)
    Correct
  • B
    \(75^\circ \)
  • C
    \(120^\circ \)
  • D
    \(60^\circ \)
8
In the adjoining figure, \(\triangle ABC \cong \triangle ADC\). If \(\angle \)BAC = \(30^\circ \)and \(\angle \)ABC = \(100^\circ \)then \(\angle \)ACD is equal to
Question 8 figure 1
  • A
    \(50^\circ \)
    Correct
  • B
    \(80^\circ \)
  • C
    \(60^\circ \)
  • D
    \(30^\circ \)
9
In the adjoining figure, O is Mid – point of AB. If \(\angle \)ACO = \(\angle \)BDO, then \(\angle \)OAC is equal to
Question 9 figure 1
  • A
    \(\angle \)BOD
  • B
    \(\angle \)OCA
  • C
    \(\angle \)OBD
    Correct
  • D
    \(\angle \)ODB
10
In the adjoining figure, AB = BC and \(\angle \)ABD = \(\angle \)CBD, then another angle which measures \(30^\circ \) is
Question 10 figure 1
  • A
    \(\angle \)BAD
  • B
    \(\angle \)BDA
    Correct
  • C
    \(\angle \)BCD
  • D
    \(\angle \)BCA
11
In the adjoining figure, AC = BD. If \(\angle \)CAB = \(\angle \)DBA, then \(\angle \)ACB is equal to
Question 11 figure 1
  • A
    \(\angle \)BAD
  • B
    \(\angle \)ABC
  • C
    \(\angle \)BDA
    Correct
  • D
    \(\angle \)ABD
12
In the adjoining figure, ABCD is a quadrilateral in which AD = CB and AB = CD, then \(\angle \)ACB is equal to
Question 12 figure 1
  • A
    \(\angle \)ACD
  • B
    \(\angle \)BAC
  • C
    \(\angle \)CAD
    Correct
  • D
    \(\angle \)BAD
13
In the adjoining figure, AB = AC and \(\angle \)A = \(70^\circ \), then \(\angle \)C is
Question 13 figure 1
  • A
    \(70^\circ \)
  • B
    \(110^\circ \)
  • C
    \(55^\circ \)
    Correct
  • D
    \(40^\circ \)
14
In the adjoining figure, PQ = PR. If \(\angle \)Q = \(70^\circ \), then measure of \(\angle \)P is
Question 14 figure 1
  • A
    \(80^\circ \)
  • B
    \(40^\circ \)
    Correct
  • C
    \(110^\circ \)
  • D
    \(70^\circ \)
15
In the adjoining figure, AB = AC. If \(\angle \)ACD = \(115^\circ \), then the measure of \(\angle \)A is
Question 15 figure 1
  • A
    \(65^\circ \)
  • B
    \(57.5^\circ \)
  • C
    \(50^\circ \)
    Correct
  • D
    \(70^\circ \)