Find the area of a rectangle with sides equal to a) 6 cm and 7 cm; b) 10 cm and 8 mm c) 25 m and 30 mm
| January 5, 2021 | education
S – area
S = a * b
a) 6 cm and 7 cm
S = 6 * 7
S = 42 (cm ^ 2)
b) 10 cm and 8 mm = 100mm and 8mm
S = 100 * 8 = 800 (mm ^ 2) = 80cm ^ 2
c) 25 m and 30 mm = 2500cm and 3cm
S = 2500 * 3 = 7500 (cm ^ 2) = 75 dm ^ 2
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