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Mathematics 7 Online
OpenStudy (anonymous):

Please help me with this question!!

OpenStudy (anonymous):

OpenStudy (anonymous):

I don't understand what to do. At all

Vocaloid (vocaloid):

|dw:1442979539581:dw| the curvy lines mean that these two angles are equal, so

Vocaloid (vocaloid):

2x + 2x + 5x + 5 = 360 solve for x

OpenStudy (anonymous):

ok well you know =360 degrees

OpenStudy (anonymous):

2x+2x+2(5x+5)=360 right

OpenStudy (anonymous):

so it is 4x + (5x + 5)?

OpenStudy (anonymous):

distribute the 2

OpenStudy (anonymous):

to the 5x and 5

OpenStudy (anonymous):

Why are we distributing?

OpenStudy (anonymous):

because there are two corners right and you know that they are the same because both the corners have two lines you you want to know what the rhombus=360

OpenStudy (anonymous):

oh ok. so 4x + 10x + 10. so 14x + 10?

OpenStudy (anonymous):

so 25? Yes that sounds right!! YES

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Yay! Thanks!!!

OpenStudy (anonymous):

14=350 degrees

OpenStudy (anonymous):

did you divide 350 by 14

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Good night! Thank you so much!

OpenStudy (drigobri):

360 is the sum of the internal angles. We can add all angles and match the 360, to find the value of x, then is: \[(5x +5º) + 2x + (5x +5º) + 2x = 360º\]\[(10x + 10º) + 4x = 360º\]\[14x + 10º = 360º\]\[14x = 360º-10º\]\[x = 350º/14\]\[x = 25º\]

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