Question

Help me? Show work so I can understand please and thank you!

Answer 1

I think this is correct, Answer is 21

Explanation:

Step 1: Write down formula:
`a^2+b^2+c^2`

Step 2: Plug in b and c value in formula:
`a^2+20^2=29^2`

Step 3: Solve the exponents:
`a^2+400=841`

Step 4: Subtract 400 from both sides:
`-400`
`-400`

`a^2=441`

Step 5: Square root both sides:
`√(a^2)=√(441)`

`a=21`

Step 6: 29+21: 50

Step 7: 50-29: 21

Answer 2

29^2 - 20^2
841-200=641
Answer: 25.31