Question

plzzz answer this .........​

Answer 1

Answer:

INR 139 OR INR 138.9

Step-by-step explanation:

Given,

Radius of the cone/hemisphere = 7cm

Height of the toy = 15cm

then Height of the cone = 8cm

Now,

Total Surface Area of the toy = Surface area of cone + Surface area of Hemisphere

TSA(Toy) = pi.r.l + 2.pi.r

TSA(Toy) = (22/7 x 7 x √(113)) + (2 x 22/7 x 7)

TSA(Toy) = 227.8 cm^2

Now,

Cost of painting the toy @0.50 INR/cm^2:

= (227.8 x 1/2) INR

= 138.9 INR

= 139 INR