CHSPE formulas Questions & Answers

Area of a parallelogram - ANSWERSA=b•h Area of a triangle - ANSWERSA=1/2b•h Area of a trapezoid - ANSWERSA=1/2h(b1+b2) Area of a circle - ANSWERSA=pi r^2 Pythagorean theorem - ANSWERSa^2+b^2=c^2 Soh cah Toa - ANSWERSSine=opposite over hypotenuse Cosine=adjacent over hypotenuse Tan=opposite over adjacent Volume of a prism - ANSWERSV=Area of base•height Surface area of a prism - ANSWERS2B+perimeter of the base • height Cylinder volume - ANSWERSV=pi • r^2h Cylinder surface area - ANSWERSSA=2•pi•r^2+2pi•r•h Cone volume - ANSWERSVolume=1/3pi•r^2•h Cone surface area - ANSWERSSA=pi•r^2(l+r) Or pi•r^2+pi•r•l Sphere volume - ANSWERSVolume=4/3•pi•r^3 Sphere surface area - ANSWERSSA=4•pi•r^2 Pyramid volume - ANSWERSV=1/3•B•h Pyramid surface area - ANSWERSSA=B+1/2•perimeter of base•slant height Slope formula - ANSWERSy2-y1 ------- x2-x1 Midpoint formula - ANSWERS(x1+x2,y1+y2) -------- -------- 2 2 Distance formula - ANSWERSthe square root of (x2-x1)^2 + (y2-y1)2 Equation of a line - ANSWERSy=mx+b