Answer:
The perimeter of ∆ABC is
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
When a circle has an inscribed angle that "cuts out" a semi-circle, like the one in the attached figure, then the inscribed angle is a right angle. so
m∠C=90°
The perimeter of triangle ABC is equal to
----> is equal to the diameter of the circle
<em>Find the length side AC</em>
substitute
<em>Find the length side BC</em>
substitute
<em>Find out the perimeter</em>
substitute