Question

find the curved surface of cone with radius of base 28 cm and height 21 CM​

Answer 1

Answer:

Right circular cone

Solve for surface area

A≈5541.77cm²

r Radius

28

cm

h Height

21

cm

Using the formulas

A=πrl+πr2

l=r2+h2

Solving forA

A=πr(r+h2+r2)=π·28·(28+212+282)≈5541.76944cm²

Answer 2

Answer:

Here is the answer. Refer to it.