Diameter of a circle d2r - Study guides, Class notes & Summaries

Perimeter of a rectangle - Answer P=2l+2w or 2(l+w) Perimeter of a square - Answer P=4s Area of a triangle - Answer A= (1/2)bh Area of a rectangle - Answer A=bh or lw Area of a square - Answer A=s^2 Diameter of a circle - Answer d=2r Circumference of a circle - Answer C=2π or πd Area of a circle - Answer A=πr^2 Volume of rectangular solids - Answer V=lwh Pythagorean theorem - Answer a^2 +b^2 =c^2 Used to determine the length of the h...