Business class gets double the allowance. The website lists both linear dimensions and L/W/H dimensions. We don't know if either or both apply like if you could have a bag with 30 cm of height (10 cm more) and 30cm of width (10cm less). Technically you exceeded the height requirement but the width is smaller to make up for it.
Max Dimensions:
55 x 40 x 20 cm
22 x 16 x 8 inches
Linear
115 cm
46 inches
Weight Restrictions:
10 kg
22 lbs
30L 3.25lbs
✈️ 98% - 20x13x8in
22L 3.13lbs
✈️ 98% - 19x11x5in
36L 2.5lbs
✈️ 81% - 20x14x8in
42L 4.6lbs
✈️ 64% - 22x14x10in
42L 3.6lbs
✈️ 65% - 22x14x10in
44L 2.8lbs
✈️ 65% - 21x14x10in
44L 2.5lbs
✈️ 65% - 22x14x10in
45L 3.1lbs
✈️ 47% - 23x14x8in
40L 2.4lbs
✈️ 47% - 21x14x10in
35L 3.5lbs
✈️ 98% - 20.5x13.8x4.7in
60L 5.4lbs
✈️ 88% - 28x16x8in