Rhombus LMNO

has a diagonal line MO¯¯¯¯¯¯¯¯¯
. If the length of LO¯¯¯¯¯¯¯=5
units and MO¯¯¯¯¯¯¯¯¯=8
units, what is the unit length of LM¯¯¯¯¯¯¯¯¯
?(1 point)
LM¯¯¯¯¯¯¯¯¯=
units
Remai

1 answer

In a rhombus, the diagonals bisect each other at right angles. To find the length of side \( LM \), we can use the properties of right triangles formed by the diagonals.

Given:

  • \( LO = 5 \) units (half of diagonal \( LN \))
  • \( MO = 8 \) units (half of diagonal \( MO \))

Thus, the full lengths of the diagonals are:

  • \( LN = 2 \times LO = 2 \times 5 = 10 \) units
  • \( MO = 2 \times MO = 2 \times 8 = 16 \) units

Now, we can use the right triangle \( LOM \) to find the length of \( LM \). By applying the Pythagorean theorem:

\[ LM^2 = LO^2 + MO^2 \]

Substituting the known lengths:

\[ LM^2 = 5^2 + 8^2 \] \[ LM^2 = 25 + 64 \] \[ LM^2 = 89 \]

Taking the square root:

\[ LM = \sqrt{89} \]

Thus, the length of \( LM \) is \( \sqrt{89} \) units.

If you want to give a numerical approximation, \( \sqrt{89} \approx 9.43 \) units.

So, the answer is:

\[ LM \approx 9.43 \text{ units} \]