The formula for the lateral surface area of a right circular cone is:

where r is the radius of the base, and l is the slant height.
Plugging in the values we get:
The answer is 19.5
You add all the numbers to get 273 and divide by the amount of dots which is 14 to get 19.5
Answer
63.2 degrees
Step-by-step explanation:
Using law of cosines: 19^2=8^2+14^2-2(8)(14) cos (x)
361=64+196-224 cos(x)
361=260-224cos(x)
101=224cos(x)
divide both sides by 224, which gets you (rounded to 4th decimal place) 0.4509. do inverse cos which gets you 63.2
Answer:
Top row 2nd one
Step-by-step explanation:
Distrube out .5 first and the equation will be .5x+2
Then add 3 to both sides and you get y=.5x+5