In triangle ABC, R(b+c)=a√bc, where R is the circumradius of the triangle. Then the triangle is Aisosceles but not right Bright but not isosceles Cright isosceles DequilateralSubmit If H is the orthocentre of the triangle ABC, R = circumradius and P=AH+BH+CH, then Ap=2(R+r...
Furthermore, we have some nice formulas for finding the lengths of the circumradius of a triangle and of a regular polygon, including, as you can see:These formulas make finding the length of the circumradius of a triangle or of a regular polygon a breeze, so it's a good idea to ...