Question

A large cake has a radius of 7 cm. What will be the smallest area of the box holding the cake?

• A. $49m^2$
• B. $194m^2$
• C. $149m^2$
• D. $56m^2$

Answer 1

The correct option is B $194m^2$

The radius is given as 7 cm. Hence, its diameter will be 2 $\times$ 7.
The diameter of the cake will be equal to the length of the side of the box.
Side of box $=14cm$
Area of the box $=(side{)}^2=(14{)}^2=196m^2$