Practice finding the area of a trapezoid. The formula is Area = ½ × (base₁ + base₂) × height.
Add the two parallel bases, multiply by the height, and take half: A = ½ × (base₁ + base₂) × height. With bases 8 and 14 and a height of 5, the area is ½ × 22 × 5 = 55 square units.
Cubles kits are geometry in your hands: nets, faces, edges and vertices that fold and click into a poseable 3D character. No scissors, no glue, about 15 minutes.