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Murrr4er [49]
3 years ago
14

Two angle measures of a triangle are given what is the third angle measure 57 68 _ 90 40 __ 29 71 _

Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0
Sum\ of\ angles\ in\ triangle\ is\ 180^{\circ}\\\\
57^{\circ},68^{\circ},x\\
57+68+x=180\\
125+x=180\\
x=55^{\circ}\\\\
90^{\circ},40^{\circ},x\\
90+40+x=180\\
130+x=180\\
x=50^{\circ}\\\\29^{\circ},71^{\circ},x\\
29+71+x=180\\
100+x=180\\x=80^{\circ}
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