Question

Find the length of the diagonal of a rectangle. Round your answer to nearest tenth.

Answer 1

19.2m

Explanation:

"Slice" the rectangle into two right triangles (slice along the diagonal). Now you can use the Pythagorean theorem to calculate the length of the diagonal:

`a^(2) +b^(2) =c^(2) \\12^(2)+15^(2) =c^(2) \\144+225=c^(2) \\√(369) =\sqrt{c^(2) }\\19.2m =c`