GCSE Secondary Maths Age 13-17 - Geometry & Measures: Circumference of a circle - Explained

The video tutorial explains how to determine if a 50 cm ribbon is long enough to wrap around a circular cake with a 7-inch diameter. It covers calculating the circumference using the formula π multiplied by the diameter, converting inches to centimeters, and concludes that one ribbon length is insufficient. The tutorial emphasizes the importance of unit conversion and provides a marking scheme for the problem.

What is the circumference of the cake in centimeters?

Is one length of ribbon sufficient to go around the cake? Explain your reasoning.