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Mathematics 15 Online
OpenStudy (anonymous):

Find the measure of angle X. 75° 37.5° 52.5° 105°

OpenStudy (anonymous):

OpenStudy (anonymous):

i have answered it, just tell me if its correct: 105 + x = 180 x = 180 - 105 x = 75

OpenStudy (anonymous):

@midhun.madhu1987

OpenStudy (anonymous):

@Directrix

OpenStudy (mayankdevnani):

is the triangle ISOSCELES ??

OpenStudy (haseeb96):

no it is incorrect

OpenStudy (anonymous):

idk thats all that is written

OpenStudy (anonymous):

please help me if its incorrect

OpenStudy (mayankdevnani):

yes...the triangle is isosceles

OpenStudy (mayankdevnani):

because the two angles are equal which are marked green

OpenStudy (mayankdevnani):

|dw:1416469477488:dw|

Directrix (directrix):

105 + x + x = 180. 75 is not correct.

OpenStudy (mayankdevnani):

use ANGLE SUM PROPERTY :- \[\large \bf x+x+105^o=180^o\]

OpenStudy (mayankdevnani):

now solve for x ?? @Addicto_

OpenStudy (haseeb96):

every triangle is consist on three angles when we add them which will equal to 180 like this one x+y+z=180 okay ? so in the question one angle is 105 while we take the other two angles as ''x''

OpenStudy (haseeb96):

so it would be 105 + x + x=180 now solve it and get the answer

OpenStudy (anonymous):

so the x becomes 2x?

OpenStudy (mayankdevnani):

yeah

OpenStudy (haseeb96):

yes

OpenStudy (haseeb96):

just divide which was 75 your answer by 2 ,u will get the correct answer

OpenStudy (anonymous):

105 + 2x = 180 2x = 180 - 105 2x = 75/2 x = 37.5

OpenStudy (mayankdevnani):

correct !!

OpenStudy (mayankdevnani):

good job !! @Addicto_

OpenStudy (haseeb96):

Good job Boy :)

OpenStudy (anonymous):

thanks and im a girl lol

OpenStudy (mayankdevnani):

welcome :) lol

OpenStudy (haseeb96):

sorry :(

OpenStudy (anonymous):

thats ok

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