Triangles lessons
23 animated step-by-step lessons (Geometry). Solve triangles with the law of sines and the law of cosines, and find their area.
Showing 1–23 of 23
- Video lesson0:41GeometryHigh school2 stepsSolve the triangle with sides a = 3, b = 4, c = 5
Triangles
- Video lesson0:44GeometryHigh school2 stepsSolve the triangle with sides a = 5, b = 6, c = 7
Triangles
- Video lesson0:44GeometryHigh school2 stepsSolve the triangle with sides a = 7, b = 8, c = 9
Triangles
- Video lesson0:42GeometryHigh school2 stepsSolve the triangle with sides a = 6, b = 6, c = 6
Triangles
- Video lesson0:42GeometryHigh school2 stepsSolve the triangle with sides a = 5, b = 12, c = 13
Triangles
- Video lesson0:44GeometryHigh school2 stepsSolve the triangle with sides a = 4, b = 7, c = 9
Triangles
- Video lesson0:42GeometryHigh school2 stepsSolve the triangle with sides a = 8, b = 15, c = 17
Triangles
- Video lesson0:43GeometryHigh school2 stepsSolve the triangle with sides a = 10, b = 10, c = 12
Triangles
- Video lesson0:53GeometryHigh school3 stepsSolve the triangle with a = 7, b = 10 and included angle C = 60°
Triangles
- Video lesson0:52GeometryHigh school3 stepsSolve the triangle with a = 5, b = 8 and included angle C = 40°
Triangles
- Video lesson0:53GeometryHigh school3 stepsSolve the triangle with a = 12, b = 9 and included angle C = 110°
Triangles
- Video lesson0:47GeometryHigh school3 stepsSolve the triangle with A = 40°, B = 60° and c = 10
Triangles
- Video lesson0:47GeometryHigh school3 stepsSolve the triangle with A = 35°, B = 75° and c = 12
Triangles
- Video lesson0:47GeometryHigh school3 stepsSolve the triangle with A = 50°, B = 50° and c = 8
Triangles
- Video lesson1:10GeometryHigh school5 stepsTwo sides of a triangle are 5 and 7 with a 60° angle between them. Find the third side
Triangles
- Video lesson1:08GeometryHigh school5 stepsTwo sides of a triangle are 2.5 and 4 with a 35.5° angle between them. Find the third side
Triangles
- Video lesson1:08GeometryHigh school5 stepsTwo sides of a triangle are 10 and 12 with a 75° angle between them. Find the third side
Triangles
- Video lesson1:10GeometryHigh school5 stepsTwo sides of a triangle are 6 and 9 with a 120° angle between them. Find the third side
Triangles
- Video lesson1:07GeometryHigh school5 stepsTwo sides of a triangle are 3 and 8 with a 45° angle between them. Find the third side
Triangles
- Video lesson0:59GeometryHigh school5 stepsFind all three angles of a triangle with sides 3, 4 and 5
Triangles
- Video lesson1:02GeometryHigh school5 stepsFind all three angles of a triangle with sides 7, 8 and 13
Triangles
- Video lesson1:02GeometryHigh school5 stepsFind all three angles of a triangle with sides 5, 6 and 9
Triangles
- Video lesson1:02GeometryHigh school5 stepsFind all three angles of a triangle with sides 4, 4 and 7
Triangles