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using formulas Worksheets

This section provides 8th grade algebra worksheets focusing on formula application in geometry. Students practice using the Pythagorean theorem to find missing side lengths in right triangles and apply the Law of Cosines to determine unknown angles in various triangles.

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Using Formulas

About these worksheets

Students apply mathematical formulas to solve geometry problems involving right and non-right triangles. These worksheets cover the Pythagorean theorem for finding missing side lengths and the Law of Cosines for calculating unknown angles. Designed for eighth grade and above, these resources connect algebraic computation with geometric understanding.

using formulas Worksheets - Using Pythagorean theorem worksheet

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Using Pythagorean theorem

8g7

Identify the hypotenuse and the two legs in a right triangle.
Use the Pythagorean theorem (a² + b² = c²) to find the missing side c.
Square the leg lengths and add them correctly before solving for c.
Take a square root to get the final length of c.

using formulas Worksheets - Applying the Law of Cosines worksheet