Hello!
Question 1A equilateral triangle is a triangle where all three sides are equal to each other and all three internal angles are equal to each other.
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Question 2
You put in 2 for m and 121 for n
![\sqrt[2]{121}](https://img.qammunity.org/2019/formulas/mathematics/middle-school/hprp0xsw4bx5x9xs8ezef08s014xc4jezm.png)
This means that you are looking for the square root of 121
The answer is 11
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Hope this helps!