A reflection across the x-axis maps the point (4,-5) to the point
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Answer:
The surface area of her bamboo rain stick is 1,837 cm^2
Step-by-step explanation:
The bamboo rain stick can be modeled as a cylinder.
To calculate the surface of a cylinder, we add the lateral surface and 2 times the circular base.
The lateral surface is equal to the length of the bamboo rain stick multiplied by the circunference of the base.
Then we have:
The base is calculated as π times the square of the radius. We don't know the radius, but we can calculate it from the circumference as:
Then, we can calculate the base area as:
The surface area of the bamboo rain stick is: