Triangle Angle Calculator

Your details

The side opposite angle A. Leave blank if unknown.
The side opposite angle B. Leave blank if unknown.
The side opposite angle C. Leave blank if unknown.
The angle at vertex A, opposite side a. Leave blank if unknown.
deg
The angle at vertex B, opposite side b. Leave blank if unknown.
deg
The angle at vertex C, opposite side c. Leave blank if unknown.
deg
Angle AAcute scalene triangle
43.0039deg

Angle at vertex A, opposite side a

Angle B76.9961deg
Angle C60deg
Side a7
Side b10
Side c8.8882
Area30.3109
Perimeter25.8882
Inradius2.3417
Circumradius5.1316
Case solvedSAS

This is an acute scalene triangle, solved using the SAS method.

  • Angles: A = 43.0039, B = 76.9961, C = 60.0000 (sum = 180.0000 deg).
  • Area: 30.3109 square units.
  • Perimeter: 25.8882 units.

Next stepTo verify, check that all three angles sum to 180 degrees and that side ratios match the law of sines (a/sin A = b/sin B = c/sin C).

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