Answer:
The corner angles are 80° (JKL) and 100° (MJK), while the side lengths are 261
Explanation:
Because the specified length measures are rhombus diagonals, each side will be the hypotenuse of a triangle with legs half as long:
(122 + 102) = 244 = 261 15.62... side length
The stated angle measure is half that of J. Because the whole measure of J is 100°, the full measure of K is 180° -100° = 80°.