Basic Geometric Properties Flashcards
What is the circumference of a circle?
C = pi(d)
What is the area of a circle
A = pi(r^2)
What is the Area of a triangle?
A = 1/2B x H
What is the perimeter of a triangle?
P = A + B + C
What do the interior angles of any triangle add up to?
180 degrees
An irregular triangle (draw) has ?
Has no same sides or angles
An isosceles triangle (draw) has?
Two sides and angles are the same length and same measure
An equilateral triangle has?
Three sides and angles of equal length and measure
What is the Pythagorean Theorem & what does it state? What are legs & hypotenuse?
a^2 + b^2 = c^2
Right triangles
a & b are legs - shortest
- both touching the right angle - 90* degrees
c is the hypotenuse - longest
What is the Area of a Rectangle?
A = L x W
What is the Perimeter of a Rectangle?
P = 2L + 2W
What do the interior angles of a rectangle, parallelogram, & square equal?
360* degrees
What is the area of a square?
A = s^2
What is the perimeter of a square?
P = 2L + 2W
What is the area of a parallelogram ?
A = b x h
