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Find the value of 2 in the triangle shown below.
O
2 =
3.5
4
55°
3.5


Sagot :

Answer:

Sides: a = 2   b = 2  c = 2

Step-by-step explanation:

Equilateral triangle.

Sides: a = 2   b = 2   c = 2

Area: T = 1.732

Perimeter: p = 6

Semiperimeter: s = 3

Angle ∠ A = α = 60° = 1.047 rad

Angle ∠ B = β = 60° = 1.047 rad

Angle ∠ C = γ = 60° = 1.047 rad

Height: ha = 1.732

Height: hb = 1.732

Height: hc = 1.732

Median: ma = 1.732

Median: mb = 1.732

Median: mc = 1.732

Inradius: r = 0.577

Circumradius: R = 1.155

Vertex coordinates: A[2; 0] B[0; 0] C[1; 1.732]

Centroid: CG[1; 0.577]

Coordinates of the circumscribed circle: U[1; 0.577]

Coordinates of the inscribed circle: I[1; 0.577]

Exterior (or external, outer) angles of the triangle:

∠ A' = α' = 120° = 1.047 rad

∠ B' = β' = 120° = 1.047 rad

∠ C' = γ' = 120° = 1.047 rad