Question

the radius of the base and the height of the right sercular cone are 9cm and 8cm respectively find the volume of total surface area by using formula 1/3πr2h
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Answer 1

Answer:

Here is your answer

Step-by-step explanation:

Given : radius (r)=7 cm height (h)=2 cm Then

l2=h2+r2=242+72

or l=625 cm = 25 cm

Total surface area of the cone = Curved surface area + Area of base

=πrl+πr2=(722×7×25)+(722×7×7)=704cm2