Question

a rectangular cloth of dimensions 30 by 10 cm how many circular pieces of diameter 1cm can be cut out from cloth to make a design

Answer 1

area of cloth=30×10=300cm²-----(1)
area of each circular piece=πr²=(22/7)×(0.5)²-(2)
so total bill. of pieces=(1)/(2)
$= \frac{300}{ (\frac{22}{7}) \times {(0.5)}^{2} }$
$= \frac{300 \times 7}{22 \times 0.25}$
=21000/55
=381.8182
so no. of cloth pieces=381.
hope it'll help
mark it as brainliest..