Raghu wants to make a closed aluminium cone for his science project. The slant height and radius of the cone are 10 cm and 7 cm respectively. Find the area of aluminium sheet required to make the cone.(Use π=227)

Raghu wants to make a closed aluminium cone for his science project. T

1.	Raghu wants to make a closed aluminium cone for his science project. The slant height and radius of the cone are 10 cm and 7 cm respectively. Find the area of aluminium sheet required to make the cone.(Use π=227)
Answer» Raghu wants to make a closed aluminium cone for his science project. The slant height and radius of the cone are 10 cm and 7 cm respectively. Find the area of aluminium sheet required to make the cone.(Use $π = \frac{22}{7}$ )