Question

Extra questions
Q1.Find the total surface area of a hemisphere of radius 10cm (use =3.14)
Q2. Find the height of cone, if its slant height is 34cm and base diameter is 32cm.
Q3. If the perimeter of an equilateral triangle us 180cm, what will be its area?
Q4. Find the remainder when 4
3 − 3
2 + 4 − 2
(i) x-1 (ii) x-2
Q5. Factorise :
3 − 23
2 + 142 − 120
Q6. The following observations have been arranged in ascending order. If the median of the data is 63,
find the value of x.
29, 32, 48, 50, x, x+2, 72, 78, 84, 95
Q7.The angles of a quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of the quadrilateral.
Q8. A floral design on a floor is made up of 16 tiles which are triangular, the sides of the triangle being
9cm, 28cm, and 35cm. Find the cost of polishing the tiles at the rate of 50p per 2
.
Q9. Construct a triangle XYZ in which ∠ = 30°, ∠ = 90° and XY + YZ + ZX = 11cm.
Q10. A dome of a building is in the form of a hemisphere. From inside, it was white-washed at the cost
of Rs.498.96. If the cost of white-washing is Rs.200 per square metre, find the
1.Inside surface area of the dome
2.Volume of the air inside the dome.



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Answer 1

Biogenesis is the production of new living organisms. Conceptually, biogenesis sometimes attributed to Louis Pasteur and encompasses the belief that complex living things come only from other living things, by means of reproduction.

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