Question

a) Paresh leaves his home and rides his motorcycle to a cinema hall covering 20 km in half an hour. Rahim’s home is 15 km from the cinema hall but he too takes half an hour to reach the cinema hall on his scooter. Who travelled faster and by how much?

Answer 1

Answer:

Let the slant height of the cone be 'l' meters.

height =24 m and diameter =14 m or radius =7 m.

Then according to the question.

l²=h²+r²

》l²=24²+7²

》l²=576+49

》l² =625

》l= √625 m

》l=25 m

So, the slant height of the cone is 25 m.

Now,

Curved Surface Area of the cone = πrl = 22/ 7×7×25

》CSA=550m²

Now, length of the cloth used = Area/ width of the cloth

》Length of the cloth used =110m

》Cost of cloth =Rs.25/meter

》Total cost of clothe used 25×110=Rs.2750

Step-by-step explanation:

your answer is given above