Answers by Haren

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59 views

The total surface area of solid hemisphere of radius is (A) πr2 (B) 2πr2 (C) 3πr2 (D) 4πr2

answered Sep 8 in Maths

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67 views

Find the mean using the step deviation method. Class 0-10, 10-20, 20-30, 30-40, 40-50, Frequency 6 10 15 9 10.

answered Sep 8 in Maths

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212 views

The perimeter of sector OACB of the circle centred at O and of radius 24, is 73.12 cm. (i) Find the central angle ∠AOB

answered Sep 8 in Maths

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63 views

A train travels at a certain average speed for a distance of 132 km and then travels a distance of 140 km

answered Sep 8 in Maths

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413 views

Line 4x + y = 4 divides the line segment joining the points (−2, −1) and (3, 5) in a certain ratio. Find the ratio.

answered Sep 8 in Maths

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198 views

Find the ratio in which the y-axis divides the line segment joining the points (4, −5) and (−1, 2). .

answered Sep 8 in Maths

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165 views

In the given figure, PA and PB are tangents to a circle centred at O. Prove that (i) OP bisects ∠APB

answered Sep 8 in Maths

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106 views

Amita buys some books for ₹1920. If she had bought 4 more books for the same amount each book would cost her

answered Sep 8 in Maths

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81 views

From the top of a 9 m high building, the angle of elevation of the top of a cable tower is 60º and angle of depression

answered Sep 8 in Maths

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168 views

A group of students conducted a survey to find out about the preferred mode of transportation to school among their

answered Sep 8 in Maths

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242 views

P(x, y) is a point equidistant from the points A(4, 3) and B(3, 4). Prove that x − y = 0

answered Sep 7 in Maths

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1.1k views

The sum of the first 12 terms of an A.P. is 900. If its first term is 20 then find the common difference and 12th term.

answered Sep 7 in Maths

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173 views

In the given figure, ∆ABC is an equilateral triangle. Coordinates of vertices A and B are (0,3) and (0,−3) respectively

answered Sep 7 in Maths

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123 views

Rinku was very happy to receive a fancy jumbo pencil from his best friend Rohan on his birthday.

answered Sep 7 in Maths

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696 views

Radha, an aspiring landscape designer, is tasked with creating a visually captivating pool design that incorporates

answered Sep 7 in Maths

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70 views

The 4th term from the end of the A.P −8, −5, −2, … ,49 is (A) 37 (B) 40 (C) 1 (D) 43

answered Sep 7 in Maths

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251 views

In the given figure, if △ OCA ∼△ OBD then ∠OAC is equal to (A) 58º (B) 55º (C) 128º (D) 52º

answered Sep 7 in Maths

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551 views

If perimeter of given triangle is 38 cm, then length AP is equal to (A)19 cm (B) 5 cm (C) 10 cm (D) 8 cm

answered Sep 7 in Maths

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241 views

A quadratic polynomial whose zeroes are 2/5 and −1/5 is (A) 25x2 + 5x − 2 (B) 5x2 − 2x + 1 (C) 5x2 + 2x − 1

answered Sep 7 in Maths

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1.2k views

If △ABC∼△PQR such that 3AB = 2PQ and BC=10 cm, then length QR is equal to (A) 10 cm (B) 15 cm (C) 20 3cm (D) 30 cm

answered Sep 7 in Maths

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