D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD = 2 cm, BD = 3 cm, BC = 7.5 cm and DE || BC. Then, length of DE (in cm) is
Question
Rohit QNA
In ∠BAC = 90° and AD ⊥ BC. A Then
Question
Rohit QNA
(а) BD.CD = BC²
(б) AB.AC = BC²
(c) BD.CD = AD²
(d) AB.AC = AD²
in progress
0
Class 10 Maths
3 years
1 Answer
15 views
Enlightened 0
Assertion: The HCF of two numbers is 5 and their product is 150, then their LCM is 3 Reason: For any two positive integers a and b HCF ^ h a b, + ^ h a b, LCM = a b
Question
Rohit QNA
(a) Both the Assertion and the
Reason are correct and the Reason
is the correct explanation of the
Assertion.
(b) The Assertion and the Reason
are correct but the Reason is not the
correct explanation of the Assertion.
(c) Assertion ...
in progress
0
Class 10 Maths
3 years
1 Answer
128 views
Enlightened 0
Assertion: 3125 13 is a terminating decimal fraction. Reason: If q 2 5 m n = where m n, are non-negative integers, then q p is a terminating decimal fraction
Question
Rohit QNA
(a) Both the Assertion and the
Reason are correct and the Reason
is the correct explanation of the
Assertion.
(b) The Assertion and the Reason
are correct but the Reason is not the
correct explanation of the Assertion.
(c) Assertion ...
in progress
0
Class 10 Maths
3 years
1 Answer
89 views
Enlightened 0
Assertion: 34.12345 is a terminating decimal fraction Reason: Denominator of 34.12345, when expressed in the form q p , q ! 0, is of the form 2 5 m n , where m and n are nonnegative integers.
Question
Rohit QNA
(a) Both the Assertion and the
Reason are correct and the Reason
is the correct explanation of the
Assertion.
(b) The Assertion and the Reason
are correct but the Reason is not the
correct explanation of the Assertion.
(c) Assertion ...
in progress
0
Class 10 Maths
3 years
1 Answer
373 views
Enlightened 1
π is
Question
Rohit QNA
(a) a rational number
(b) an irrational number
(c) both (a) & (b)
(d) neither rational nor irrational
in progress
0
Class 10 Maths
3 years
1 Answer
8 views
Enlightened 0
A lemma is an axiom used for proving
Question
Rohit QNA
(a) other statement
(b) no statement
(c) contradictory statement
(d) none of these
in progress
0
Class 10 Maths
3 years
1 Answer
7 views
Enlightened 0