The perimeter of the triangle shown is 32 ft what is the value of x

Mathematics

1 answer:

dolphi86 [110]3 years ago

3 0

Where's X located at on the triangle
side a
side b
side c

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A regulat pentagon has side lenghts of 5.8cm and apothem of 4cm. calculate its perimeter and area

Kryger [21]

PENTA = 5.

a regular polygon has all equal sides, so if one side is 5.8, all are, so the perimeter for this pentagon with 5 sides is 5.8 + 5.8 + 5.8 + 5.8 + 5.8 = 29.

$\bf \textit{area of a regular polygon}\\\\ A=\cfrac{1}{2}ap~~ \begin{cases} p=perimeter\\ a=apothem\\ \cline{1-1} p=29\\ a=4 \end{cases}\implies A=\cfrac{1}{2}(4)(29)\implies A=58$