Question

If DE= 10 in and GH= 4in what is the length of the radius? Round to the nearest tenth

Answer 1

Solution

Using Pythagoras

$\begin{gathered} GE^2=ME^2+GM^2 \\ ME=5 \\ GM=2 \\ GE^2=5^2+2^2 \\ GE^2=25+4 \\ GE^2=29 \\ Take\text{ the square root} \\ GE=\sqrt{29} \\ GE=5.3851 \end{gathered}$

GE is the radius

Therefore, the final answer

Option A

$5.4in$