Answer:

Step-by-step explanation:
Use the Pythagorean theorem formula.
<u>Pythagorean theorem formula:</u>

A²=9
B²=10
C²=???
9²+10²=c²
Use the order of operations.
<u>PEMDAS stands for:</u>
- Parentheses
- Exponents
- Multiply
- Divide
- Add
- Subtract
<u>Do exponents.</u>
9²=9*9=81
81+10²=c²
10²=10*10=100
<u>Rewrite the problem down.</u>
81+100=c²
<u>Then, add.</u>
81+100=181

The missing length of c is 181.
Therefore, the correct answer is 181.
To learn more about Pythagorean theorem:
brainly.com/question/26183488
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