Question

1. m ? j l 10.5 k

Explanation:

Step1: Identify the shape

The figure is a square (all angles are right angles, and adjacent sides appear equal). In a square, all sides are equal.

Step2: Determine the side length

Side \( LK \) is given as \( 10.5 \). Since \( MJ \) is a side of the square, it should be equal to \( LK \). So \( MJ = LK = 10.5 \).

Answer:

\( 10.5 \)