Davitily Math Academy - a free place to learn and practice math.
Basic Math / GED

Algebra

Geometry

SAT Math

Algebra 2

Tutorial Files

Points, Lines, and Angles

Constructions

Triangles

Polygons

Parallel Lines

Basic Proofs

Triangle Proofs

Similar Polygons

Circles

Perimeter and Area

Surface Area and Volume

Coordinate Geometry

Right Triangles and Trigonometry Functions

Pythagorean Theorem (Find c).

Pythagorean Theorem (Find a, b, or c).

Pythagorean word problem (find the hypotenuse).

Pythagorean word problem (find a leg).

Pythagorean word problem (find the hypotenuse or leg).

45-45-90 Triangle.

45-45-90 Triangle II.

45-45-90 Triangle word problem.

30-60-90 Triangle.

30-60-90 Triangle II.

30-60-90 Triangle word problem.

Sine, cosine, and tangent.

Solving right triangles using sine.

Solving right triangles using cosine.

Solving right triangles using sine or cosine.

Solving right triangles using tangent.

Solving for an angle of a right triangle using cos, sin, or tan.

Tangent word problem.

Sine word problem.

Cosine word problem.

View Tutorial Video

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