Question

Geometary formulas 7th grade

Answer 1

Sum of the interior angles of a polygon. (number of sides - 2) 180.

Area of a rectangle or a parallelogram. A = bh.

Area of a triangle. A = ½ bh.

Area of a trapezoid. A = ½ (b₁+b₂) h.

Area of a circle. A = πr²

Circumference of a circle. C = πd.

Surface area of a prism. S = 2B + Ph.

Surface area of a cylinder.