Question

A circle of radius 2 cm is cut off from a square piece of an aluminium sheet of side
6 cm. What is the area of the left over aluminium sheet?
[Take n = 3.14​

Answer 1

Answer:

area of remaining sheet=  23.44$cm^{2}$

Step-by-step explanation:

area of remaning sheet=area of square sheet - area of circle

ar(remaining sheet)=$a^{2}-\pi r^{2}$

                        =$6^{2}-3.14$×$2^{2}$

                        =36-12.56

                       = 23.44$cm^{2}$

Answer 2

Answer:

23.44$cm^{2}$

Step-by-step explanation:

Radius of circle= 2cm

Area of circle= $\pi$$r^{2}$

                     = 3.14*$2^{2}$

                     = 3.14*2*2

                     =6.28*2

                     =12.56$cm^{2}$

Side of aluminum sheet= 6cm

Area of aluminum sheet= side*side

                                           =6*6

                                            =36$cm^{2}$

∴ Area of leftover sheet= (Area of aluminum sheet) - (Area of circle)

                                       = 36 - 12.56

                                       = 23.44 $cm^{2}$