jovanamedina32
jovanamedina32
28-06-2018
Mathematics
contestada
help, please ?? find A
Respuesta :
convectus
convectus
28-06-2018
This is an isosceles triangle , the base 2 angles are equal so you have 47*2 + 2a = 180 a=43
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oliverstealoliver
oliverstealoliver
28-06-2018
43 degrees. ik this bc the intersecting line makes two right triangles and every triangles angles when put together add up to 180 degrees. so 90 plus 47 is 137 the 180-137 is 43
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