Question

if you can please help me it would me a lot

Answer 1

Answer:

59.62075 (if you use 3.14 for pi) 59.65099051 ( if you just use regular pi)

Step-by-step explanation:

i personally use 3.14 for pi. its just easi×er.

so the surface area formula for a cone is

π $rl$ + π$r^{2}$

since the formula is looking for radius and not diameter, we change 3.5 to 1.75 (3.5 ÷ 2)

so it would be

(3.14×1.75×9.1) + (3.14×$1.75^{2}$)

which that equals

59.62075

hope this helps!! <3