The radius of incircle is given by the formula $r = \dfrac{A_t}{s}$ where At = area of the triangle and s = semi-perimeter.
An online calculator to calculate the radius of an inscribed circle of a triangle given the lengths of its three sides. The formula and an example on how to use the formula are presented.
Approach: Formula for calculating the inradius of a right angled triangle can be given as r = ( P + B – H ) / 2. And we know that the area of a circle is PI * r2 where PI = 22 / 7 and r is the radius of the circle. Hence the area of the incircle will be PI * ((...
To find the area of a circle inside a right angled triangle, we have the formula to find the radius of the right angled triangle,r = ( P + B – H ) / 2. Given the P, B and H are the perpendicular, base and hypotenuse respectively of a right angled triangle. where π = 22 /...
2. Substitute the side length into the circumradius formula: R=6√3√3 3. Simplify the expression: When you divide 6√3 by √3, the √3 in the numerator and denominator cancels out: R=6 4. State the final answer: The length of the radius of the circumcircle of the equilateral trian...
The formula for the radius of the circle circumscribed about a triangle (circumcircle) is given by $R = \dfrac{abc}{4A_t}$ where At is the area of the inscribed triangle. Derivation: If you have some questions about the angle θ shown in the figure above, see the relationship between ...