Pre Algebra Honors Formulas Flashcards

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Questions and Answers

What is the formula for the area of a parallelogram?

A = bh (correct)
A = pi(r^2)
A = 1/2bh
A = 1/2 (h) (b1 + b2)

What is the formula for the area of a triangle?

A = 1/2bh

What is the formula for the area of a trapezoid?

A = 1/2 (h) (b1 + b2)

What is the formula for the area of a circle?

<p>A = pi(r^2)</p> Signup and view all the answers

What is the formula for the circumference of a circle?

<p>C = d(pi)</p> Signup and view all the answers

Flashcards

Parallelogram Area

Area = base × height

Triangle Area

Area = 1/2 × base × height

Trapezoid Area

Area = 1/2 × height × (base1 + base2)

Circle Area

Area = π × radius × radius

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Circle Circumference

Circumference = diameter × π

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Study Notes

Area Formulas

Parallelogram Area Formula:
- Calculated using ( A = bh )
- ( b ) represents the base, and ( h ) the height.
Triangle Area Formula:
- Given by ( A = \frac{1}{2}bh )
- The base ( b ) is multiplied by the height ( h ), then halved.
Trapezoid Area Formula:
- Expressed as ( A = \frac{1}{2}(h)(b1 + b2) )
- ( h ) is the height, while ( b1 ) and ( b2 ) are the lengths of the two bases.
Circle Area Formula:
- Defined by ( A = \pi(r^2) )
- ( r ) indicates the radius of the circle.

Circumference Formula

Circle Circumference Formula:
- Represented by ( C = d(\pi) )
- ( d ) denotes the diameter of the circle, which is multiplied by ( \pi ).

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Description

Test your knowledge of essential formulas in Pre Algebra with these flashcards. Each card includes a specific formula along with its definition, covering areas of various geometric shapes such as parallelograms, triangles, trapezoids, and circles. Perfect for mastering key concepts in your Pre Algebra Honors course.