Question

Answer all the questions.

35. A hollow cylindrical pipe has inner circumference 44 dm and outer 45 dm.

Find the cost of painting it from both sides at rate of Rs. 2per sq. m, if length is

3.5 m.

36. Find the area of the pentagonal field. All dimensions are in metres.
37. Find the area of the polygon
38.Three pumps working 8 hours a day can empty a tank in 2 days. How many

hours a day must 4 pumps work to empty the tank in one day.

39. Factorize:

i) n2

– 19n -92

ii) 12m3

+ 6m2

– 6m

iii) ab(x2

+y2

) – xy(a2

+b2

)​

Answer 1

Answer:

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