It is NOT a right triangle because a^2+b^2 does not equal c^2.
[ you can use my work for more explanation if your teacher wants it done a certain way]
[ you can use my work for more explanation if your teacher wants it done a certain way]
At a movie theater,child admission is $5.10 and adult admission is $8.80.On Thursday,four times as many tickets adult tickets as
1 answer:
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Answer:
90π units²
Step-by-step explanation:
(refer to attached)
Total Surface are off a right cylinder = area of its ends + area of curved surface
Given radius, r = 3 units and height, h = 12 units
Area of 2 ends,
= Area of 2 circles
= 2 x πr²
= 2π (3²)
= 2π (9)
=18π units²
Area of curved surface,
= 2πrh
= 2π(3)(12)
= 72π units²
Hence,
Surface area = 18π + 72π = 90π units²
