Question

Please help i would really appreciate it

Answer 1

The length of the missing side is 21 cm.

Explanation:

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

`a^(2)` +
`28^(2)` =
`35^(2)`

`a^(2)` + 784 = 1225

`a^(2)` + 784 - 784 = 1225 - 784

`a^(2)` = 441

`\sqrt{a^(2) }` =
`√(441)`

a = 21

Helping in the name of Jesus.

Answer 2

a^2+b^2=c^2. In this case, b=28 and c=35. Plug into equation. a^2+28^2=35^2. Simplify and you get a^2+784=1225. Get a^2 by itself so subtract 784 on both sides to get a^2=441. Then, to get a you do the square root of 441 which is 21. So the answer is 21.