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Geometry Fundamentals
Master shapes, angles, and geometric theorems
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Clone this Deck & Start StudyingFlashcards (6)
Card 1
What is the Pythagorean theorem?
In a right triangle: a² + b² = c², where c is the hypotenuse (longest side) and a, b are the other two sides.
Card 2
What are complementary and supplementary angles?
Complementary angles add up to 90°. Supplementary angles add up to 180°.
Card 3
What is the formula for the area of a circle?
A = πr², where r is the radius. (π ≈ 3.14159)
Card 4
What is the sum of interior angles in a triangle?
180 degrees. This applies to all triangles regardless of their shape.
Card 5
What is the difference between perimeter and area?
Perimeter is the distance around a shape (linear). Area is the space inside a shape (square units).
Card 6
What are congruent and similar figures?