Teachoo MCQ Test

10 Question MCQ (including Assertion)

Preparing for CBSE

Chapter 6 Class 10 Triangles | 10 questions

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Question 1 of 10
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Question 1 of 10
NCERT Exemplar
D and E are respectively the points on the sides AB and AC of a triangle ABC such that \(\mathrm{AD}=2 \mathrm{~cm}, \mathrm{BD}=3 \mathrm{~cm}, \mathrm{BC}=7.5 \mathrm{~cm}\) and \(\mathrm{DE} \| B C\). Then, length of \(D E\) (in cm ) is
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Question 2 of 10
NCERT Exemplar
If \(\triangle \mathrm{ABC} \sim \triangle \mathrm{QRP}, \frac{\operatorname{ar}(\mathrm{ABC})}{\operatorname{ar}(\mathrm{PQR})}=\frac{9}{4}, \mathrm{AB}=18 \mathrm{~cm}\) and \(\mathrm{BC}=15 \mathrm{~cm}\), then PR is equal to
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Question 3 of 10
NCERT Exemplar
It is given that \(\triangle \mathrm{ABC} \sim \triangle \mathrm{PQR}\), with \(\frac{\mathrm{BC}}{\mathrm{QR}}=\frac{1}{3}\). Then, \(\frac{\operatorname{ar}(P R Q)}{\operatorname{ar}(B C A)}\) is equal to
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Question 4 of 10
CBSE Board Exam 2026
In \(\triangle \mathrm{DEF}, \mathrm{AB} \| \mathrm{EF}\). The value of x is :
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Question 5 of 10
CBSE Board Exam 2025
In the given figure, in \(\triangle \mathrm{ABC}, \mathrm{AD} \perp \mathrm{BC}\) and \(\angle \mathrm{BAC}=90^{\circ}\). If \(\mathrm{BC}=16 \mathrm{~cm}\) and \(D C=4 \mathrm{~cm}\), then the value of \(x\) is :
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Question 6 of 10
NCERT Exemplar
If S is a point on side PQ of a \(\triangle \mathrm{PQR}\) such that \(\mathrm{PS}=\mathrm{QS}=\mathrm{RS}\), then
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Question 7 of 10
NCERT Exemplar
If in Fig 6.1, O is the point of intersection of two chords AB and \(C D\) such that \(O B=O D\), then triangles \(O A C\) and \(O D B\) are
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Question 8 of 10
NCERT Exemplar
In triangles ABC and \(\mathrm{DEF}, \angle \mathrm{B}=\angle \mathrm{E}, \angle \mathrm{F}=\angle \mathrm{C}\) and \(\mathrm{AB}=3 \mathrm{DE}\).
Then, the two triangles are
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Question 9 of 10
CBSE Board Exam 2026
It is given that \(\triangle \mathrm{ABC} \sim \triangle \mathrm{QRP}\) such that \(\mathrm{AB}=9 \mathrm{~cm}, \mathrm{BC}=5 \mathrm{~cm}\) and \(\mathrm{PR}=2 \mathrm{~cm}\). Length of side QR is :
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Question 10 of 10
NCERT Exemplar
If in two triangles DEF and \(\mathrm{PQR}, \angle \mathrm{D}=\angle \mathrm{Q}\) and \(\angle \mathrm{R}=\angle \mathrm{E}\), then which of the following is not true?
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