To convert to percent from fraction you divide the numerator by the denominator. from percent to decimal you move two decimal places to the left.
Answer:
Approximately 439.6 square millimeters.
Step-by-step explanation:
The formula for the surface area of a cone is the following:

Where, <em>r </em>is the radius and <em>l</em> is the slant height.
The radius is 7 and the slant height is 13. We also use 3.14 for π Thus:

Closed dot on 53, arrow going to the right
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