Question

a student takes a rectangular piece of paper 30 cm long and 21 cm wide . find the area of the biggest circle that can be cut out from the paper

Answer 1

Answer:

Step-by-step explanation:

→ Area of the paper=l*b       [since its a rectangle]

=30*21

=630 square cm

→ Now the radius of the largest circle will be 10.5 cm

→ Hence the area of the circle so formed will be 346.36

→ And the area of the left portion will be =630-346.36

 =283.64

Answer 2

Step-by-step explanation:

AREA OF RECTANGLE = l*b

AREA OF CIRCLE = πr²

BIGGEST AREA OF THE CIRCLE CUT OUT WOULD BE -

AREA OF RECTANGLE - AREA OF CIRCLE

=(30 * 21)-(22/7*10.5*10.5)

=630 - 346.185

=283.815 cm²

HOPE IT HELPS.....