Question

What is the length of the missing length

Answer 1

Answer: The length is 12 mm.

Explanation:

-Use the Pythagorean Theorem:

`a^2 + b^2 = c^2`

-Solve:

`a^(2) + 5^(2) = 13^(2)`

-Multiply 5 and 13 by the exponents:

`a^2+25=169`

-Subtract 25 from 169:

`a^2+25=169\\ -25 -25`

`a^2=144`

-Then, you square root the 144:

`√(a^2)=√(144)`

`a=12`

-Result:

`a=12`