concepts & formulas Flashcards
Perimeter of any geometric figure
sum of the measure of its’s sides
area of a rectangle
length times width
circumference of a circle
π times diameter
diameter
2 times radius
area of a circle
π times R squared
area of a triangle
base * hight * 1/2
area of a parallelogram
base * hight
what is an equilateral triangle
3 equal sides and angles. each angle is 60 degrees.
Isosceles triangle
has 2 equal triangle & 2 equal sides
scalene triangle
each angle and sides aren’t equal
the sum of three angles is
180 degrees
right triangle
one angle his equal to 90 degrees
A rule about the triangle
sum of every 2 sides must be greater than the 3rd side
volume of a cylinder
π * R squared * H
volume of a prisim/box
length * width * hight