PLEASE GEOMETRY HELP : can someone please explain to me how to do this and get the right answer. Attacehd file
well first you knowthe sum of a polygon's exterior angles = 180 degrees
yes
so add up the exterior angles and you get an equation like this ...... 14x+6+6x-3+4x+8+ 3x+30+49=180
now simplify it
i got 2.64705882 -___-
@mangalover15
should be 17 degrees
and x=3.33333.... so just substitude the x's and check to see the answer is correct
wait so i substitute x with 17?
@mangalover15
hello?
i got 99 when i plugged in17 and i got 16.8 when i plugged in 3.3 which one is the answer?
sorry had to reply to someone.....substitude x for 3.33333
so 16.8 ? how is it a decmial
okay so divide 90/27....what do you get?
3.333333333333
okay so keep that exact number and multiply it by 6 then subtract 3 from it
so 17
yup you got it right!
thank you
no prob
can you help me with one more please @mangalover15 The measures of each exterior angle in a regular hexagon is (4x + 15)°. Find the value of x rounded to the nearest hundredth.
so how many angles does it have?
6
okay so 6(4x+15)=180 would be your equation
then solve for x
so 3.75?
yup
thats the answer? hows it a decmial
well x is gonna be a decimal it told you to round to the nearest hundredth place right?
true so rounding it would be just 3.75?
yup
i got both answers wrong
First find out the interior angles of this polygon with n sides Angle A = 180-(6x-3) Angle B = 180-(4x+8) Angle C= 180- (49)= 131 Angle D= 180-(3x+30) Angle E= 180-(14x+ 6) Formula for sum of interior angles of a polygon with n sides = (n-2)x 180 (5-2)x180=540 Now adding all interior angles equals 540 180-(6x-3) + 180-(4x+8)+131+180-(3x+30)+180-(14x+6)= 540 Solving for x we get x= 10 Hence exterior angle A = 6x 10 -3 = 57 degrees
I hope you got this answer
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