Question

6
A rectangular plywood measures 2.1 m by 70 cm. Circular discs are to be cut out
from the plywood of diameter 14 cm. How many discs can be cut and how much
plywood will be left?​

Answer 1

Answer:

42.06 * 75 = 3154.5 cm2

Step-by-step explanation:

Have to cut Squares of 14cm * 14cm = 196, then inscribe in them circles of diameter = 14cm

Then Numbers of discs will be 14, 700 / 196 = 75 discs

each square of 196 Cm2 , will have 196- 49π = 42.06 as waste.

Total waste = 42.06 * 75 = 3154.5 cm2