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The segment is tangent below and the diameteris 15 units long. Find the value of x.

The segment is tangent below and the diameteris 15 units long. Find the value of x-example-1
User Esset
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1 Answer

18 votes
18 votes

TIP

Tangent always form angle 90 degree

To solve Right angle-triangle

RECALL

pythagoras theroem


\begin{gathered} \text{HYP}^2=OP\P^2+ADJ^2 \\ 25^2=15^2+x^2 \\ x^2=25^2-15^2 \\ x^2=625-225 \\ x^2=400 \\ x=\sqrt[]{400} \\ x=20\text{ units} \end{gathered}

User Sharefa
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