Respuesta :
The perimeter will be 36cm as length and bredth increases by 2cm. So the area will be 160cm^2.
Answer:
Perimeter of rectangular cake = 36 cm
Area of rectangular cake is 80 square cm.
Step-by-step explanation:
Length of the cake = 8 cm
Width of cake = 6 cm
Since we are given that she wants to add 1 cm of cream around the cake
So, Length becomes: 8+1+1 =10 cm
Width becomes: 6+1+1= 8 cm
Perimeter of rectangular cake = [tex]2(Length+Breadth)[/tex]
= [tex]2(10+8)[/tex]
= [tex]2(18)[/tex]
= [tex]36[/tex]
Thus the perimeter of rectangular cake = 36 cm
Area of rectangular cake = [tex]Length \times Breath[/tex]
= [tex]10 \times 8[/tex]
= [tex]80cm^2[/tex]
Thus the area of rectangular cake is 80 square cm.