Respuesta :
Step 1: find the area of the base
A=l*w = 8.25*5.5 = 45.375
Step 2: find the perimeter of the base
P=2l+2w = 2(8.25) + 2(5.5) = 16.5 + 11 = 27.5
Step 3: find the surface area of the prism
SA=2A+Ph = 2(45.375) + 27.5(4.5) = 90.75 + 123.75 = 214.5
Hope this helps
A=l*w = 8.25*5.5 = 45.375
Step 2: find the perimeter of the base
P=2l+2w = 2(8.25) + 2(5.5) = 16.5 + 11 = 27.5
Step 3: find the surface area of the prism
SA=2A+Ph = 2(45.375) + 27.5(4.5) = 90.75 + 123.75 = 214.5
Hope this helps
As , we know Total surface area of Right rectangular prism or Cuboid is given by the formula -
2(lb+bh+hl)
where , l , b and h are length , Breadth and hieght respectively.
So, Total surface area of the given rectangular prism →
2{(8.25×5.5)+(5.5×4.5)+(4.5×8.25)}
= 2{45.375+24.75+37.125}
= 2{107.25}
= 214.5 cm²
Answer ) 214.5 cm² of gift wrap is needed.
2(lb+bh+hl)
where , l , b and h are length , Breadth and hieght respectively.
So, Total surface area of the given rectangular prism →
2{(8.25×5.5)+(5.5×4.5)+(4.5×8.25)}
= 2{45.375+24.75+37.125}
= 2{107.25}
= 214.5 cm²
Answer ) 214.5 cm² of gift wrap is needed.
