# 270 442.85 255 triangle

### Obtuse scalene triangle.

Sides: a = 270   b = 442.85   c = 255

Area: T = 31200.04333315
Perimeter: p = 967.85
Semiperimeter: s = 483.925

Angle ∠ A = α = 33.54435977671° = 33°32'37″ = 0.5855446224 rad
Angle ∠ B = β = 114.9988433475° = 114°59'54″ = 2.00771012988 rad
Angle ∠ C = γ = 31.45879687577° = 31°27'29″ = 0.54990451308 rad

Height: ha = 231.1111432085
Height: hb = 140.906569417
Height: hc = 244.7066222208

Median: ma = 335.1879893863
Median: mb = 141.1865939013
Median: mc = 343.8787610859

Inradius: r = 64.4732890079
Circumradius: R = 244.312234098

Vertex coordinates: A[255; 0] B[0; 0] C[-114.1100240196; 244.7066222208]
Centroid: CG[46.96765866013; 81.56987407359]
Coordinates of the circumscribed circle: U[127.5; 208.4044102539]
Coordinates of the inscribed circle: I[41.075; 64.4732890079]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 146.4566402233° = 146°27'23″ = 0.5855446224 rad
∠ B' = β' = 65.00215665248° = 65°6″ = 2.00771012988 rad
∠ C' = γ' = 148.5422031242° = 148°32'31″ = 0.54990451308 rad

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

See more informations about triangles or more information about solving triangles.