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Mathematics 21 Online
OpenStudy (rebeccapink6398):

WILL MEDAL!!! Two angles of a quadrilateral each measure 70°. A third angle of the quadrilateral measures 115°. What is the measure of the fourth angle of the quadrilateral? A. 40° B. 65° C. 105° D. 115°

OpenStudy (rebeccapink6398):

@jigglypuff314

OpenStudy (anonymous):

the answer is C!!

jigglypuff314 (jigglypuff314):

There are a total of 360 degrees in a quadrilateral. so 360 - 70 - 70 - 115 = (missing angle)

OpenStudy (rebeccapink6398):

could you also help me with this??>>>>> Two angles of a triangle measure 58° and 104°. What is the measure of the third angle of the triangle? A. 18° B. 28° C. 32° D. 76°

jigglypuff314 (jigglypuff314):

there are 180 degrees in a triangle so total degrees minus given angles = missing angle

OpenStudy (rebeccapink6398):

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OpenStudy (anonymous):

the answer is A, 104 +58 =162 180 - 162

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