Question

ASE BASED STUDY-IV(NO 40-44)
CASE BASED STUDY -IV
IA MARKS]
In one corner of the drawing room, a flower basket ke kept inside the glass, lies on
the table. The basket is designed in such a way that every one
pleases to see it. The shape
of the flower basket is hemisphere with radius 60 c.m. and upper shape is conical havine
radius 60c.m and height 120 cm. The shape of glass is cylindrical'having radius 60c.m. and
height 180 e.m.. Determine
40. The capacity of the gass is
13
a
bu
m
41. The volume of conical part is
a.0.45m. b. 0.54m c. 0.25 m
d. 0.52m
42. The curved surface area of the hemisphere Is
a. 2.56m b. 2.36m2 c. 2.46m? d. 2.26m?
43. The volume of the flower basket is equal to sum of
a. Two individual volumes b. Two individual CSA
c. Volumes and CSA
d. None of the above
4Nf the cost of painting the glass outside is Rs 12 per m', the total cost of painting the CSA of
the glass approximately Is
a RS 8540 b. Rs 89.40 C. RS 81.40
d. RS 87 40
*
1 pe​

Answer 1

Step-by-step explanation:

all steps given in the pictures

Answer 2

Answer:

(i) capacity of glass = 2.04 m³

(ii) option(a)0.45 m³

volume of conical part = 0.45 m³

(iii) option (d) 2.26 m²

CSA of hemisphere =  2.26 m²

(iv)  ans(a) two individual volumes

(v) option (c) Rs 81.4

total cost of painting the CSA of the glass = Rs 81.4

Step-by-step explanation:

radius of hemisphere = 60 cm = 0.6m

radius of cone = 60 cm = 0.6 m

height of cone = 120 cm = 1.2 m

radius of cylinder = 60 cm = 0.6 m

height of cylinder = 180 cm = 1.8 m

(i) volume of cylinder = πr²h

capacity of glass = 3.14 × 0.6² × 1.8 = 2.04 m³

(ii) volume of cone = $\frac{1}{3}$ πr²h

volume of conical part = $\frac{1}{3}$ 0.45 m³

(iii) curved surface area of hemisphere = 2πr²

CSA = 2× 3.14 × 0.6² =  2.26 m²

(iv) volume of flower basket = volume of hemisphere + volume of conical haven

ans(a) two individual volumes

(v) CSA of cylinder = 2πrh

csa of glass = 2× 3.14 × 0.6 × 1.8 = 6.78 m²

cost of painting/m² = Rs 12

total cost of painting = 12 × 6.78 = 81.4

total cost of painting the CSA of the glass = Rs 81.4