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ajprincess Group TitleBest ResponseYou've already chosen the best response.1
dw:1353828858730:dw Since AB=AC triangle ABC is an isosceles triangle. So y=5x40 y and 5x are supplementary angles y+5x=180 5x40+5x=180 10x40=180 Can u find x @Kagome_gurl8?
 2 years ago

Aditi_Singh Group TitleBest ResponseYou've already chosen the best response.0
being an isosceles triangle, <SRT = <STR = 5x40 Now, <STR + <STU = 180 degrees  they both form a linear angle. => 5x40 + 5x = 180 , Solve it for x now :)
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
well the base angles of an isosceles triangle are equal, so since that angle in the bottom left of the triangle is 5x  40, then so is the angle on the bottom right... and the angle on the bottom right and the angle just outside the triangle are what we call a linear pair, and a linear pair are two angles that add up to 180 degrees, and just as shown above, you add those two angles together to get 180 and solve for x.
 2 years ago

Kagome_gurl8 Group TitleBest ResponseYou've already chosen the best response.0
I got x=22, is that correct?
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
no... what were your steps?
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
yes you are right , sorry
 2 years ago

Aditi_Singh Group TitleBest ResponseYou've already chosen the best response.0
Yep, you are correct !
 2 years ago

Kagome_gurl8 Group TitleBest ResponseYou've already chosen the best response.0
Thank you all very much.....
 2 years ago
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