Answer:
The 2nd root of 10, or 10 radical 2, or the square root of 10 is written as 2√10=√10=±3.162278.
Step-by-step explanation:
An exterior angle is the sum of the two other interior angles
<span>the three interior angles are 55 and 65 and 180-(55+65)=60 </span>
<span>so 60 + 55 = 115 </span>
<span>60 + 65 = 125 </span>
<span>65 + 55 = 120
</span>
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Answer:

Step-by-step explanation: