Mathematics, 21.04.2020 05:18 caliharris123

A
Shahmeen bought her best friend a poster for a present and wants to wrap it up for her as a
surprise. Shahmeen rolls the poster up in a cylinder and has just enough wrapping paper to cover
the poster and the ends of the cylinder without the wrapping paper overlapping. How much
wrapping paper does Shahmeen have if the cylinder is 60 cm long and has a diameter of 4 cm?
B. Ms. Calculation, the math teacher, has an 80 cm long rain stick that makes a sound like running
water when she turns it upside down. When the students hear its sound, they know that it is a
signal for them to be attentive listeners. Her rain stick is made of a big piece of bamboo for the long
part of the cylinder and bamboo caps cover each end. It has a circumference of 22 cm. What is
the surface area of her bamboo rain stick?

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