Answer:
First option is correct i.e: The surface area is multiplied by 1/4
Step-by-step explanation:
Need to compare the surface area of right rectangular prism when the length, width and height are halved as compared to original length, width and height.
length =4,width =2,height =7
Area of right rectangular prism = 2(wl+hl+hw)
=2(2*4 + 7*4 + 7*2)
=2(8+28+14)
=2(50)
= 100 cm³
Now, if the length, width and height are halved, the surface area will be:
length= 2, width=1, height= 3.5
Area of right rectangular prism= 2(1*2 + 3.5*2 + 3.5*1)
= 2(2+7+3.5)
=2(12.5)
=25 cm³
if the length, width and height are halved the surface area is 25 cm³ while if original length, width and height are used the surface area is 100 cm³.
So, first option is correct i.e: The surface area is multiplied by 1/4.
