How do you find the surface area of a cylinder formed by each net? if possible could i get both answered

Use this formula for the both of them
A=2πrh+2πr^2

R=Radius
H=Height
So for the first one it would be
SA=2π3*10+2π3^2
Just put it in a calculator

Hi there...

Just find the area of both shapes... 

6. is 216.66m

7. is 942in

Hope this helps and you rate me good

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )