Math Formulas to Know for exam

Distance Formula, d=√(x

_{2}- x_{1})^{2 }+ (y_{2}- y_{1})^{2}Midpoint Formula, m=(x

_{1}+x_{2}/2), (y_{1}+y_{2}/2)Trig Ratios, SOHCAHTOA

Geometric Mean, √a*b

Pythagorean Theorem, a

^{2}+b^{2}=c^{2}Arc/angle rules, center=same, on circle=half, outside=saverage, inside=average

Point slope form and slope formula, y-y=m(x-x), y=mx+b

Law of sines ratio, sin

**∠**a/a=sin**∠**/b=sin**∠**c/c

# Math Formulas to Know for exam

Distance Formula, d=√(x

_{2}- x_{1})^{2 }+ (y_{2}- y_{1})^{2}Midpoint Formula, m=(x

_{1}+x_{2}/2), (y_{1}+y_{2}/2)Trig Ratios, SOHCAHTOA

Geometric Mean, √a*b

Pythagorean Theorem, a

^{2}+b^{2}=c^{2}Arc/angle rules, center=same, on circle=half, outside=saverage, inside=average

Point slope form and slope formula, y-y=m(x-x), y=mx+b

Law of sines ratio, sin

**∠**a/a=sin**∠**/b=sin**∠**c/c