165,174 views
31 votes
31 votes
SOMEONE PLEASE HELLPPPP

SOMEONE PLEASE HELLPPPP-example-1
User Huu Phuong Vu
by
2.9k points

1 Answer

19 votes
19 votes

Answer:

93.39

Explanation:

So the sum of exterior angles of the convex octagon is: 360 degrees

This means if we add all the equations that represent each angle, we can set it equal to 360 and solve for x


(x+14) + (2x-3) + (3x+8) + (3x+16) + (2x-17) + (3x-4) + (3x-12) + (6x)

Group like terms


(x+2x+3x+3x+2x+3x+3x+6x) + (14-3+8+16-17-4-12)

Add like terms


23x+2

Now let's set the sum of exterior angles to 360


23x+2 = 360

Subtract 2 from both sides


23x=358

Divide both sides by 23


x\approx 15.565

So by looking at all these, it appears that 6x is the highest value, given that x is positive. The way I estimated, is approximately 15.5, whenever I saw an equation like x+14, I estimated it's about 2x, since 14 is not exactly, but close to 15.5. I did this with each polynomial given. You could also manually check each one

Original equation

6x

Subsitute

6(15.565)

Simplify


93.39

User Hugh Guiney
by
3.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.