Minus the 7
-2x = -6
Divide by -2
X = 3
Answer:
7.5°
Step-by-step explanation:
Complementary angles add up to 90°. 90 - 82.5 = 7.5
Answer: Ethan's cylinder has a larger total surface area.
Step-by-step explanation:
You total surface area of a cylinder can be calculated with the following formula:
Where "r" is the radius and "h" is the height of the cylinder,
Then:
1) T<u>otal surface area of Tommy's cylinder </u>
Since the radius is half the diameter:
Knowing that:
You can subsitute values into the formula and find the total surface area:
2) <u>Total surface area of Ethan's cylinder </u>
Knowing that the radius is half the diameter:
And having:
You can subsitute values into the formula and find the total surface area:
Therefore, Ethan's cylinder has a larger total surface area.