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stira [4]
3 years ago
11

A triangle has angle measures 23° and 35°. What is the measure of the third angle ?

Mathematics
2 answers:
frozen [14]3 years ago
7 0
23 + 35 + A=180
58 + a =180
-58         -58
-------------------
      A   = 122 degrees
Effectus [21]3 years ago
7 0
The angles in a triangle always add up to 180°. to work out the third angle first you have to work out how many ° the angles that you already know add up to. in this case you already have the angles 23° and 35° which add up to the total of 58°. now to work out the third angle you have to subtract the total ° of the other angles from 180 because remember the angles in a triangle always add up to 180°. 180-58= 122 which mean that the third angle is 122<span>°. i hope this helped</span>
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