PLEASE HELP 20 POINTS- find the perimeter of a regular heptagon with consecutive vertices at A(-1,-2) and B(4,10). perimeter of the polygon is _______ units

Question

asked Mar 7, 2020 202k views

1 Answer

Benjy · Answer 1 · 2020-03-11T11:06:22+0000

ANSWER

The perimeter of the polygon is 91 units.

Step-by-step explanation

A regular heptagon has seven equal sides.

The perimeter can be calculated by multiplying one side by 7.

Since we know two consecutive vertices, we can find the length of one side using the distance formula

$|AB|= \sqrt{ {(4 - - 1)}^(2) + {(10 - - 2)}^(2) }$

$|AB|= \sqrt{ {(4 + 1)}^(2) + {(10 + 2)}^(2) }$

$|AB|= \sqrt{ {(5)}^(2) + {(12)}^(2) }$

|AB|= √( 25+ 144 )

|AB|= √( 169 ) = 13units

The perimeter is therefore

= 7 * 13 = 91units