3. 45 cm is an example of A Area C. Perimeter B. Circumference D. Volume 4. Your classroom has a floor area of 56 square meters (56 sq m). clean your classroom, how many square centimeters will yo C. 560 sq cm C. 56.000 sq cm D. 5,600 sq cm D. 560,000 sq cm 5. How many square meter of grass will be needed to fill up a yard wi of 450.000 sq cm? E. 45 sqm C. 4,500 sqm P. 450 sqm D. 45,000 sqm​