The answer is
The diameter is 4 (2) = 8 and height is 10(2) = 20
For the sides, use area of a cylinder = ph
p = 8 pi cm, ht = 20 cm. A = 160 pi sq cm
Base are 2 circles, each with radius 4 pi
Area = pi r^2 = 16 pi (times 2 circles) = 32 pi sq cm
Based on the number of seats on the balcony, the number of seats in the theatre are 600 seats.
<h3>What number of seats does the theatre have?</h3>
The balcony is said to have 120 seats and these are 1/5 of the total seats in the theatre.
The total number of seats in the theatre are:
= Number of seats on balcony / Proportion of seats this represents
Solving gives:
= 120 ÷ 1/5
= 120 ÷ 0.2
= 600 seats
Find out more on ratios and proportions at brainly.com/question/11041750.
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