How do you find the perimeter and area of a rectangle? Ans: P = 2l + 2w P = 2 (l + w) A = lw How do you find the area of a parallelogram? Ans: A = bh How do you find the circumference and area of a circle? Ans: C = 2 x pi x r C = pi x d A = pi x r^2 What is the Pythagorean Theorem? Ans: a^2 + b^2 = c^2 How do you find the area of a triangle? Ans: A = (1/2)bh How do you find the area of a trapezoid? Ans: A = (1/2)h (b1 + b2) How do you find the volume and surface area of a rectangular solid? Ans: V = lwh SA = 2lw + 2lh + hw How do you find the volume of a cylinder? Ans: V = pi x r^2 x h How do you find the volume of a cone?