Answer: Option C
, 
Step-by-step explanation:
If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.
By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a', b', c' then:

In this case

So:

Now solve the equation for the variable y



We know that
and 
Then


Finally the answer is:
, 
Answer:
Since we are apparently having a straight line which is equal to 180° therefore a=60° b=60° and c=60°
SA = 2 * pi * r^2 + 2 * pi * r * h
r = 1
h = 4
pi = 3.14
now sub
SA = 2(3.14)(1^2) + 2(3.14)(1)(4)
SA = 6.28(1) + 6.28(4)
SA = 6.28 + 25.12
SA = 31.4 sq ft
Tara should have 2 5/6 cups left of chocolate chips