Question

In the diagram, what is the length of arc AB?

A. 4.2 cm
B. 12.4 cm
C. 13.9 cm
D. 11.8 cm

Answer 1

Explanation:

Answer 2

`arc \ length = \cfrac{ \pi rn}{180}} \ \ \ \ \ \ [ \pi\approx 3.14 \ \ r=5 cm, \ n=135^o] \\ \\\\ arc \ AB = \cfrac{ 3.14*5*135}{180}\approx11.8 \ cm`