Find the total surface area of the following cone. Leave your answer in terms of pi.

12π cm^2.

Step-by-step explanation:

First work out the slant height using Pythagoras:

l^2 =  (2√3)^2 + 2^2

l^2 = 12 + 4 = 16

l = 4 cm.

Area of the base =  πr^2 =  π 2^2

Total surface area =  π* 2* 4 +  π(2)^2

= 8 π + 4 π

= 12π cm^2.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%