Explanation:
2.1.) A = bh = 3.2 * 1.8 ≈ 5.76
2.2) Using the formula A = bh, solving for h, h = A over b = 44.4 over 7.4 ≈ 6
2.3) using the formula A = wl, solving for w, w = A over l = 38.25 over 9 = 4.25
2.4.) using the formula A = a^2, solving for a, a = = 4
2.5.) A = bh = 30 * 2 = 60
2.6.) using the formula A = bh, solving for h, h = A over b = 336 over 4 = 84
2.7.) using the formula A = bh, solving for b, b = A over h = 135 over 5 = 27
2.8.) A = wl = 18 * 30 = 540 250 * 2 = 500, 250 * 3 = 750 3