# 100 210 160 triangle

### Obtuse scalene triangle.

Sides: a = 100   b = 210   c = 160

Area: T = 7712.611142545
Perimeter: p = 470
Semiperimeter: s = 235

Angle ∠ A = α = 27.32880163439° = 27°19'41″ = 0.47769638632 rad
Angle ∠ B = β = 105.4044093699° = 105°24'15″ = 1.84396484801 rad
Angle ∠ C = γ = 47.26878899574° = 47°16'4″ = 0.82549803102 rad

Height: ha = 154.2522228509
Height: hb = 73.45334421472
Height: hc = 96.40876428181

Median: ma = 179.8611057486
Median: mb = 82.31103881658
Median: mc = 143.7011078632

Inradius: r = 32.8219623087
Circumradius: R = 108.9132526985

Vertex coordinates: A[160; 0] B[0; 0] C[-26.56325; 96.40876428181]
Centroid: CG[44.47991666667; 32.13658809394]
Coordinates of the circumscribed circle: U[80; 73.90549290256]
Coordinates of the inscribed circle: I[25; 32.8219623087]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 152.6721983656° = 152°40'19″ = 0.47769638632 rad
∠ B' = β' = 74.59659063013° = 74°35'45″ = 1.84396484801 rad
∠ C' = γ' = 132.7322110043° = 132°43'56″ = 0.82549803102 rad

# How did we calculate this triangle?

### 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 ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

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