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

1 answer

In a rhombus, all sides are of equal length, and the diagonals intersect at right angles and bisect each other.

Given that \( LO = 5 \) units and \( MO = 8 \) units, we can find the lengths of the sides of the rhombus by using the properties of the right triangle formed by half the diagonals and one side of the rhombus.

  1. Since \( MO \) is one of the diagonals, the full length of diagonal \( MN \) (which isn't directly given but can be found using the diagonals):

    • \( MO \) is 8 units, so \( MO/2 = 4 \) units.
  2. For diagonal \( LN \):

    • Since \( LO \) is also a diagonal, the full length of diagonal \( LN = 2 \times LO = 2 \times 5 = 10 \) units.
    • Therefore, \( LN/2 = 5 \) units.
  3. Now, we can consider triangle \( LOM \) to find the length of side \( LM \):

    • We have:
      • \( LO = 5 \) units
      • \( MO/2 = 4 \) units (half the length of diagonal \( MO \))
    • Using the Pythagorean theorem: \[ LM^2 = LO^2 + (MO/2)^2 \] \[ LM^2 = 5^2 + 4^2 \] \[ LM^2 = 25 + 16 \] \[ LM^2 = 41 \] \[ LM = \sqrt{41} \]

So the length of \( LM \) (and hence, all sides of the rhombus) is \( \sqrt{41} \) units.

Thus, \[ LM = \sqrt{41} , \text{units}. \]