Find the value of x please

Mathematics

1 answer:

madreJ [45]3 years ago

4 0

Okay we need to know the number of degrees in this shape first in order to find x.

The formula to find the # of degrees in any polygon is

180 ( n - 2 )

n = the number of sides the figure has

This figure has 8 sides

180 ( 8 - 2 )

180 (6) = 1080°

This figure is 1080°

To find x, let's subtract all the other degrees they gave us

1080° - 124° - 136° - 132° - 129° - 116° - 158° - 141° = 144°

x = 144°

I hope I helped!

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The Quadrilateral is JKLM,

let $M_{JK}, M_{KL}, M_{LM}, M_{JM},$ be the midpoints of JK, KL, LM and JM respectively.

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Given any 2 point P(m,n) and Q(k,l),

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thus the coordinates of points $M_{JK}, M_{KL}, M_{LM}, M_{JM},$

are as follows:

$M_{JK}= (\frac{-3+1}{2}, \frac{1+3}{2})=(-1,2), \\\\M_{KL}= (\frac{1+5}{2}, \frac{3-1}{2}=(3,1), \\\\M_{LM}= (\frac{5-1}{2}, \frac{-1-3}{2})=(2, -2),\\\\ M_{JM}= (\frac{-3-1}{2}, \frac{1-3}{2})=(-2,-1)$