Question

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Answer 1

Needed length of board for ramp = 13 feet

will the board be long enough? = No, this board is not long enough

Explanation:

Step 1: Draw an illustration representing the porch, the sidewalk, and the distance of the sidewalk to the base of the porch.

Step 2: use the Phytagorean Theorem:

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

Substitute

25 + 144 =
`c^(2)`

Add

25 + 144 =
`√(169)` or 13 feet

Conclusion

13 feet >
`12(3)/(4)`