Matching Pairs Geometry Formulas (D)Online version 7th grade geometry by STEPHANIE GREGORY 1 Volume of a rectangular prism 2 SSS 3 Supplementary Angles 4 Circumference of a semi-circle 5 Area of a triangle 6 Circumference of a Circle 7 Vertical Angles 8 AAA 9 Area of a semi-circle 10 Area of a rectangle or square 11 Volume of a triangular prism 12 Area of a Circle 13 Complementary Angles Pi x radius squared 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 Angles that are on opposite sides of the figure. They are equivalent. 1/2 x base x height x height a + b > c 1/2 x base x height length x width x height all angles together = 180 degrees length x width Pi x diameter 1/2 x pi x diameter 1/2 x pi x radius squared