Question

A cuboidal box 20 cm×10 cm×8 cm was made of cardboard . From the front face , two circles of diameter 7 cm and a rectangle of sides 8 cm×2cm were cut out . Find TSA of the remaining.

Answer 1

Step-by-step explanation:

TSA of cuboid is 880cm^2

Area of 2 circles is 77cm^2

Area of the rectangle is 16cm^2

Area of the 2 circles + Area of the rectangle

77cn^2+16cm^2 = 93cm^2

Area of the remaining part is

880cm^2 - 93cm^2 = 787cm^2