pooja195
The measure of two angles in a triangle are given. Find the measure of the third angle.
30. 17° and 16.4° [A] 136.6° [B] 359.4° [C] 326.6° [D] 146.6°



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pooja195
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@jim_thompson5910

jim_thompson5910
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all angles in a triangle add to 180 degrees

jim_thompson5910
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so
if x is the missing angle, and the other two angles are 17 and 16.4, then
17+16.4 + x = 180

jim_thompson5910
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and you would solve for x

pooja195
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would i add?

jim_thompson5910
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at first, yes
17+16.4 + x = 180
33.4 + x = 180 ... add

jim_thompson5910
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then you would subtract 33.4 from both sides to isolate x

pooja195
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so my answer woood be 146.6 right


pooja195
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thank you!!
