A cylinder has a radius of 5cm and a height of 9cm find its total area

Mathematics

1 answer:

Sauron [17]2 years ago

7 0

Answer: 706.5

Step-by-step explanation:

First you have to square the radius. So for this question you multiply 5x5. That makes 25. Then you multiply that with pi ( 3.14 ) and that makes 78.50. Next you multiply it by 9, that makes 706.5.

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What is the realationship between the area of the scales ⚖️ used in pictures ?

dlinn [17]

<h2>Explanation:</h2>

As I understand, you need to know the relationship between the area of similar figures. Two shapes are similar if we can turn one into the other by moving, rotating, flipping, or scaling, so this means we can make one shape bigger or smaller.

From math, if we call $k$ the scaling factor, then the area of one figure ( $A_{1}$ ) divided by the area of another similar figure ( $A_{2}$ ) will be equal to the scaling factor squared. In other words: