5, 10, 15, 20. i think that's what it means.get a second opinion.
Angle aed has to be 80 since the two triangles share two of the same angles
Answer:
y = -21
Step-by-step explanation:
Answer:
1570
Step-by-step explanation:
the formula for surface area of a cylinder is:
A= 2πrh + 2πr²
π aka pi = 3.14
r = 10
h = 15
so now plug in the numbers
A = 2(3.14)(10)(15) + 2(3.14)(10²)
A = 942 + 2(3.14)(100)
A = 942 + 628
A = 1570