# RS Aggarwal Solutions Class 10 Chapter 19 Volume and Surface Areas of Solids Ex 19 C

In this chapter, we provide RS Aggarwal Solutions for Class 10 Chapter 19 Volume and Surface Areas of Solids Ex 19 C Maths for English medium students, Which will very helpful for every student in their exams. Students can download the latest RS Aggarwal Solutions for Class 10 Chapter 19 Volume and Surface Areas of Solids Ex 19 C Maths pdf, free RS Aggarwal Solutions Class 10 Chapter 19 Volume and Surface Areas of Solids Ex 19 C Maths book pdf download. Now you will get step by step solution to each question.

### RS Aggarwal Solutions Class 10 Chapter 19 Volume and Surface Areas of Solids Ex 19 C

Question 1:
Here h = 42 cm, R = 16 cm, and r = 11 cm
Capacity =  Question 2:
Here R = 33 cm, r = 27 cm and l = 10 cm Capacity of the frustum  Total surface area  Question 3:
Height = 15 cm, R = 562 cm = 28 cm and r = 422 cm = 21 cm
Capacity of the bucket =  Quantity of water in bucket = 28.49 litres

Question 4:
R = 20 cm, r = 8 cm and h = 16 cm Total surface area of container = πl (R+r) + πr2 Cost of metal sheet used = Rs. (1959.36×15100) = Rs. 293.90

Question 5:
R = 15 cm, r = 5 cm and h = 24 cm (i) Volume of bucket =  Cost of milk = Rs. (8.164 × 20) = Rs. 163.28
(ii) Total surface area of the bucket Cost of sheet = (1711.3×10100) = Rs. 171.13

Question 6: R = 10cm, r = 3 m and h = 24 m
Let l be the slant height of the frustum, then Quantity of canvas = (Lateral surface area of the frustum) + (lateral surface area of the cone) Question 7: ABCD is the frustum in which upper and lower radii are EB = 7 m and FD = 13 m
Height of frustum = 8 m
Slant height l1 of frustum Radius of the cone = EB = 7 m
Slant height l2 of cone = 12 m
Surface area of canvas required Question 8: In the given figure, we have
∠COD = 30°, OC = 10 cm, OE = 20 cm
Let CD = r cm and EB = R cm Also, CE = 10 cm
Thus, ABDF is the frustum of a cone in which Volume of wire of radius r and length l Volume of wire = Volume of frustum Length of the wire is 7964.44 m

Question 9: Radii of upper and lower end of frustum are r = 8 cm, R = 32 cm
Height of frustum h = 18 cm Cost of milk at Rs 20 per litre = Rs. 25.344 × 20 = Rs. 506. 88

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All Subject NCERT Solutions For Class 10

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