19. 4/6 or 2/3 (lowest term) or 2:3 in ratio 20. 2/3 or 2:3 in ratio 21. 5/12 or 5:12 in ratio 22. 14 To get geometric mean, multiply the numbers then get the square root of the product (if there are two numbers), cube root (if there are three numbers), and so on. In this case, 7*28 = 196; √196 = 14 23. 10 ft : 2.5 ft. Convert the values so that it will be similar. In this case, 30 inches is converted to ft. 24. 24 is the Perimeter of ABCDE. ABCDE and FGHJK are similar shapes. Similar shapes have proportional measurements.
Now compute for the sides of ABCDE. AB = 4; BC = ?; CD = ?; DE = ?; EA = ? AB + BC + CD + DE + EA 4 + 4 + 5 + 6 + 5 = 24
