Question

The diameter of a cone whose slant height is 35cm & curved surface area is 1320 than the sq.cm will be​

Answer 1

Answer:

radius=14, slant height =50

Curved surface area of cone=π(14)(50)=2200cm

2

Total surface area of coneπr(r+l)=π(14)(14+50)=2816cm

2

radius=35,height =8.4 dm=84 cm,slant height=

r

2

+h

2

=91cm

Curved surface area of cone=π(35)(91)=10010cm

2

Total surface area of cone =πr(r+l)cm

2

=π(35)(35+91)=13860cm

2

Answer 2

Step-by-step explanation:

radius=14, slant height =50

Curved surface area of cone=π(14)(50)=2200cm2

Total surface area of coneπr(r+l)=π(14)(14+50)=2816cm2

radius=35,height =8.4 dm=84 cm,slant height=r2+h2=91cm

Curved surface area of cone=π(35)(91)=10010cm2

Total surface area of cone =πr(r+l)cm2=π(35)(35+91)=13860cm2