Relier Pairs Geometry Formulas (D)Version en ligne 7th grade geometry par STEPHANIE GREGORY 1 Circumference of a Circle 2 Area of a semi-circle 3 Area of a triangle 4 Area of a rectangle or square 5 Circumference of a semi-circle 6 AAA 7 Complementary Angles 8 Volume of a rectangular prism 9 SSS 10 Area of a Circle 11 Volume of a triangular prism 12 Supplementary Angles 13 Vertical Angles Angles that are on opposite sides of the figure. They are equivalent. 1/2 x base x height 2 or more angles that equal 180 degrees because together they form a straight line. 2 or more angles that have a sum of 90 degrees because together they form a right angle a + b > c Pi x radius squared length x width Pi x diameter 1/2 x base x height x height 1/2 x pi x radius squared all angles together = 180 degrees 1/2 x pi x diameter length x width x height