Quadrilaterals & Other Polygons Flashcards
What is the perimeter of a parallelogram?
2(Base) + 2(Height)
What is the area of a parallelogram?
Base x Height
What is a parallelogram?
A quadrilateral with parallel opposite sides
What is a rhombus?
An equilateral parallelogram
Are all the sides of a rhombus equal?
Yes
How do you calculate the area of a rhombus?
2
Base x Height
½ x diagonal₁ x diagonal₂
Do the diagonals in a rhombus bisect each other?
Yes
Are the diagonals in a rhombus perpendicular?
Yes
A rectangle is a parallelogram with ______.
Right angles
Diagonals in a rectangle are _____ but not _____.
Equal
Perpendicular
How do you calculate the perimeter of a rectangle?
2(base) + 2(height)
How do you calculate the area of a rectangle?
base x height
A square is a rectangle with _______.
Equal sides
In a square, are diagonals perpendicular?
Yes
In a square, are diagonals equal?
Yes
In a square, do diagonals bisect?
Yes
Each diagonal in a square equals _____
Side√2
The area of a square is _____ or _____.
Side²
Diagonal²/2
How do you calculate the area of a trapezoid?
½ x height x (base₁ + base₂)
What is an isosceles trapezoid?
One where the legs are also equal
Are the diagonals equal in an isosceles trapezoid?
Yes
