NCERT Mathematics Class 10 Exemplar Ch 6 Triangles Part 1
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EXERCISE 6.1
1. In Fig. 6.2, and Then,

∠∴BAC = 90° and AD ⊥ BC
(A) (B)
(C) (D)
Answer: C
2. The lengths of the diagonals of a rhombus are and . Then, the length of the side of the rhombus is
(A) (B)
(C) (D)
Answer: B
3. If and is not similar to , then which of the following is not true?
(A) (B)
(C) (D)
Answer: C
4. If in two triangles ABC and PQR, , then
(A) (B)
(C) (D)
Answer: A
5. In Fig.6.3, two line segments AC and BD intersect each other at the point P such that , , , , and . Then, ∠ PBA is equal to

Two Line Segments AC and BD at the Point P
(A) 50° (B) 30°
(C) 60° (D) 100°
Answer: D
6. If in two triangles DEF and PQR, and , then which of the following is not true?
(A) (B)
(C) (D)
Answer: B
7. In triangles ABC and DEF, , and . Then, the two triangles are
(A) congruent but not similar (B) similar but not congruent
(C) neither congruent nor similar (D) congruent as well as similar
Answer: B
8. It is given that , with , Then, is equal to
(A) 9 (B) 3 (C) (D)
Answer: A