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Answer:
m∠JKL = 90°
m∠JKM = 45°
KL = 20
KM = 20√2
Step-by-step explanation:
All of the angles in a square are 90°. All sides are the same length. The diagonal of a square bisects the corner angle, creating two 45°-45°-90° isosceles right triangles.
The length of the diagonal of a square is ...
√(1² +1²) = √2
times the length of the side of the square.
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JK = 20 tells you the sides of the square are each 20 units.
m∠JKL = 90°
m∠JKM = 45°
KL = 20
KM = 20√2
