Chapter 9.1, Problem 10CE

To determine

To find the diameter of a circle with given radii

Answer to Problem 10CE

if radius $=8$ then diameter $=16$ ,

if radius $=5.2$ then diameter $10.4$ ,

if radius $=4\sqrt{3}$ then diameter $=8\sqrt{3}$ and

if radius $=j$ then diameter $=2j$ .

Explanation of Solution

Given information :

Radii $14,13,5.6\text{and}6n$

Since diameter is the twice length of radius.

i.e. $\text{diameter}=2\times \text{radius}$

Therefore, if radius $=14$ then diameter $=28$

if radius $=13$ then diameter $=10.4$

if radius $=4\sqrt{3}$ then diameter $=8\sqrt{3}$

if radius $=j$ then diameter $=2j$ .