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2Votes1Answer(s)AB and CD are diameters of a circle with centre O and radius 7 cm. If $\angle BOD = 30^\circ$, then find the area and perimeter of the shaded region.Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)In $\triangle ABC, \angle B= 90°$. if $\frac{AB}{AC} = \frac{1}{2}$, then $cos$ $C$ is equal toPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)$ABCD$ is a rectangle with its vertices at $(2, -2), (8, 4), (4, 8)$ and $(- 2, 2)$ taken in order. Length of its diagonal is:Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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2Votes1Answer(s)Three coins are tossed together. The probability that exactly one coin shows head, isPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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2Votes1Answer(s)In two concentric circles centered at $O$, a chord $AB$ of the larger circle touches the smaller circle at $C$. If $OA = 3.5$ cm, $OC = 2.1$ cm, then $AB$ is equal toPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)A box contains 120 discs, which are numbered from 1 to 120. If one disc is drawn at random from the box, find the probability that: a) it bears a 2- digit number b) the number is a perfect square.Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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2Votes1Answer(s)Find the zeroes of the polynomial $\displaystyle p(x) = 3x^2 + x - 10$ and verify the relationship between zeroes and its coefficientsPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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2Votes1Answer(s)If $\alpha, \beta$ are zeroes of the polynomial $8x^2 - 5x - 1$, then form a quadratic polynomial in $x$ whose zeroes are $\frac{2}{\alpha}$ and $\frac{2}{\beta}$Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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2Votes1Answer(s)Using prime factorisation, find the HCF of $180, 140$ and $210$Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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2Votes1Answer(s)Verify that $\displaystyle sin 2A = \frac{2 tan A}{1 + tan^2A} for A= 30^\circ$Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags: