14 16 18 triangle
Acute scalene triangle.
Sides: a = 14 b = 16 c = 18Area: T = 107.331126292
Perimeter: p = 48
Semiperimeter: s = 24
Angle ∠ A = α = 48.19896851042° = 48°11'23″ = 0.84110686706 rad
Angle ∠ B = β = 58.41218644948° = 58°24'43″ = 1.01994793577 rad
Angle ∠ C = γ = 73.3988450401° = 73°23'54″ = 1.28110446254 rad
Height: ha = 15.333303756
Height: hb = 13.4166407865
Height: hc = 11.926569588
Median: ma = 15.52441746963
Median: mb = 14
Median: mc = 12.04215945788
Inradius: r = 4.4722135955
Circumradius: R = 9.39114855055
Vertex coordinates: A[18; 0] B[0; 0] C[7.33333333333; 11.926569588]
Centroid: CG[8.44444444444; 3.975523196]
Coordinates of the circumscribed circle: U[9; 2.6833281573]
Coordinates of the inscribed circle: I[8; 4.4722135955]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 131.8110314896° = 131°48'37″ = 0.84110686706 rad
∠ B' = β' = 121.5888135505° = 121°35'17″ = 1.01994793577 rad
∠ C' = γ' = 106.6021549599° = 106°36'6″ = 1.28110446254 rad
Calculate another triangle
How did we calculate this triangle?
Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.
1. The triangle circumference is the sum of the lengths of its three sides

2. Semiperimeter of the triangle

3. The triangle area using Heron's formula

4. Calculate the heights of the triangle from its area.

5. Calculation of the inner angles of the triangle using a Law of Cosines

6. Inradius

7. Circumradius
