Answer: C. 130
Step-by-step explanation:
Area of red paper needed to cover Marcus's box =Surface area of cube - area of circle
The formula for calculating the surface area of a cube is expressed as
Surface area = 6a^2
where
a is the length of each side
From the information given,
a = 5
Thus,
Surface area= 6 x r5^2 = 150
The formula for calculating the area of a circle is expressed as
Area = πr^2
where
r is the radus of the circle
π is a constant whose value is 3.14
From the information given
diameter of circle = 5
radius = diameter/2 = 5/2
r = 2.5
Thus,
area of circle = 3.14 x 2.5^2 = 19.625
Area of red paper needed to cover Marcus's box = 150 - 19.625
Area of red paper needed to cover Marcus's box = 130.375
Rounding to the nearest square centimeter,
Area of red paper needed to cover Marcus's box = 130