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Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that.) What can you say about the angle sum of a convex polygon with number of sides?

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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RICE is a rhombus (Fig ). Find x, y, z. Justify your findings.

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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Is 53240 a perfect cube? If not, then by which smallest natural number should 53240 be divided so that the quotient is a perfect

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Classify the following polynomials as monomials, binomials, trinomials. Whichpolynomials do not fit in any of these three categories?`x + y, 1000, x + x^2 + x^3 + x^4, 7 + y + 5x, 2y – 3y^2, 2y – 3y^2 + 4y^3, 5x – 4y + 3xy, 4z – 15z^2, ab + bc + cd + da, pqr, p^2q + pq^2, 2p +

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Obtain the volume of rectangular boxes with the following length, breadth and heightrespectively. `xy, 2x2y,

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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Use the Identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following `501 xx 502`

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Use a suitable identity to get each of the following products. (2y + 5) (2y + 5)

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Find the value of

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Find the value of. `(2^(– 1) xx 4^(– 1)) ÷ 2^(–

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Evaluate `(5^(–1) xx 2^(–1)) xx

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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Express the following numbers in usual form. `3 xx 10^(–

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Express the number appearing in the following statements in standard form. Size of a plant cell is 0.00001275

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Which of the following are in inverse proportion?(i) The number of workers on a job and the time to complete the job.(ii) The time taken for a journey and the distance travelled in a uniform speed.(iii) Area of cultivated land and the crop harvested.(iv) The time taken for a fixed journey and the speed of the vehicle.(v) The population of a country and the area of land per

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Two persons could fit new windows in a house in 3 days. How many persons would be needed to fit the windows in one

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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5t – 3 = 3t –

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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The square READ with RE = 5.1

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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If 15 workers can build a wall in 48 hours, how many workers will be required to do the same work in 30

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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Using Euler’s formula, find the value of unknown x, y, z, p, q, r, in the following table. (i) (ii) (iii) (iv) (v) (vi) Faces 7 y 9 p 6 8 Vertices 10 12 z 6 q 11 Edges x 18 16 12 12 r

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Simplyfy `(1.5p + 1.2q)^2 – (1.5p –

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Using `(x + a) (x + b) = x^2 + (a + b) x + ab`, find `103 xx 104`

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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