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3 years ago

What is the area of a pentagon with apothem of about 10.3

1 answer:

7 0

knowing the pentagon has 5 sides, we can draw 5 equilateral triangles within the pentagon, find the area of one triangle, and multiply that area by5

the length of a side of the pentagon is 2(tan(108)). we multiply 2(tan(108)) with the apothem 10.3 then divide by 2 to get the area of 10.3tan(108). multiply this area by 5 to get the answer of 51.5tan(108) = 127.11, rounded to the nearest hundreth

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4. Han's younger sister is riding her tricycle in a straight line. After 3 s, her speed is 0.5 m/s. After 5 s, her speed is 1.5

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$t_{o}$ , $t_{f}$ - Initial and final times, measured in seconds.

$v_{o}$ , $v_{f}$ - Initial and final speeds, measured in meters per second.

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$a = \frac{1.5\,\frac{m}{s}-0.5\,\frac{m}{s} }{5\,s-3\,s}$

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Han's younger sister accelerated at a rate of 0.5 meters per square second during that time.

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