. A circle of radius 70 cm is divided into 5 equal sectors. Find the area of each of the sectors.
36. A principal becomes ₹2028 in 2 years at 4 % p.a compound interest. Find the principal.
37. Find the square root of 784 by prime factorisation method.
38. The sum of three consecutive odd numbers is 75.which is the largest among them?
39. Factorise by taking out the common factor: 9x⁵y³ + 6x³y² - 18x²y
40. Expand using exponents: 6054.345
41. Find the smallest number by which 200 should be multiplied to make it a perfect cube.
VI. Solve any 7 questions 7×5=35
( Qn no: 49 & 50 are compulsory)
42. Find the square root of 418609 by long division method.
Answers
Answered by
0
l am very sorry because I don't know about this.
Answered by
6
Step-by-step explanation:
1.area of circle= 2πr
= 2*(22/7)*70
= 440 cm^2
area of 5 equal sectors= area of circle
area of 1 sector=area of circle/5
=440/5
=88 cm^2 ans
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