What will be the radius of this circle?

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Solution

The triangle ABC is a right-angle triangle. With the Pythagorean Theorem, we will find the third side of the triangle.
AB = $\sqrt{(} 5^{2} + 12^{2}) = \sqrt{(} 25 + 144) = \sqrt{1} 69 = 13$ cm
The line AB also forms the diameter of the circumcircle.
$∴$ radius of the circle OB $= 13 / 2 = 6.5$ cm

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What will be the radius of this circle?

The triangle ABC is a right-angle triangle. With the Pythagorean Theorem, we will find the third side of the triangle. AB = √(52+122)=√(25+144)=√169=13 cm The line AB also forms the diameter of the circumcircle. ∴ radius of the circle OB =13/2=6.5 cm