Find the surface area of the figure below.
some one please help! i am struggling with these.

Question

anonymous · Answer

attachment

lsdxmdmaddicthc · Answer

Surface Area of a Cone = ( (pi)+radius+slant height ) + ( (pi) * radius(sqaured) )

lsdxmdmaddicthc · Answer

Try plugging in the values that you know and solving. I will tell you if you're correct

lsdxmdmaddicthc · Answer

Err sorry I made a mistake in the formula

lsdxmdmaddicthc · Answer

It's actually this : 
Surface Area of a Cone = ( (Pi) * Radius * Slant Height ) + ( (Pi) * Radius(sqaured) )

lsdxmdmaddicthc · Answer

Want me to explain why the formula is set up like that?
Surface Areas of Prisms and Cones are kinda similar in a way.

anonymous · Answer

okay:)
SA= ($$SA= \pi * r * slant height + \pi*r ^{2}$$
$$SA= \pi * 1.7 * 2.1 + \pi * 1.7^{2}$$

anonymous · Answer

good so far? @lsDxMdmaddicThc

lsdxmdmaddicthc · Answer

Yep, that's correct

anonymous · Answer

When i plugged all of that in i got 20.2946885422 which would round to 20.29. thank you so much!

lsdxmdmaddicthc · Answer

You're welcome. Do you want me to explain the formula of Surface Area?

anonymous · Answer

i have all of them in my notes so i think i've go it now but if i do need you ill message you:) @lsDxMdmaddicThc

lsdxmdmaddicthc · Answer

Okay :) Have a great day!

anonymous · Answer

you too!