Cosine Law

Finding a side given 2 other sides and the angle between them using Cosine Law.
Update the given information by dragging vertices of the triangle.

Grade 10 Tutorials

Find the coordinates of the Centroid.
in Analytic Geometry
Find the coordinates of the Orthocenter.
in Analytic Geometry
Find the coordinates of the Circumcenter.
in Analytic Geometry
Explore transformations on Quadratic functions.
in Transformations on Quadratic Functions. Vertex Form.
Solving Triangle Using SINE Law given Angle-Side-Angle. Tutorial #3
in Solve triangle using SINE and COSINE laws
Given 3 sides find the missing angles. Tutorial #2
in Solve triangle using SINE and COSINE laws
Solve for a side given Side-Angle-Side. Tutorial #1
in Solve triangle using SINE and COSINE laws
Find the hypotenuse.
in Solving right angled triangles
Practice finding the length of the missing side given an angle and another side
in Solving right angled triangles
Quadratic Function in factored form. Grade 10.
in Transformations on Quadratic Functions. Vertex Form.