$P=4s$

$P=s^2$

$P=a+b+c$

$P=s$

$P=4s$

$P=s^2$

$P=2b+2h$

$P=bh$

 $A=4s$ 

 $A=s^2$ 

 $A=2b+2h$ 

 $A=bh$ 

$P=4s$

 $P=a+b+c$ 

 $P=\frac{1}{2}bh$ 

$P=s$

$A=4s$

 $A=bh$ 

$A=\frac{1}{2}bh$

$A=\frac{1}{2}h\left(b_1+b_2\right)$

$C=d\pi$

$C=\pi r^2$

$C=2\pi r$

$C=2\pi r^2$

 $A=d\pi$ 

 $A=\pi r^2$ 

 $A=2\pi r$ 

 $A=2\pi r^2$ 

 $b\rightarrow a$  

 $\sim a\rightarrow\sim b$  

 $\sim b\rightarrow\sim a$  

 $a\rightarrow b$  

 $b\rightarrow a$  

 $\sim a\rightarrow\sim b$  

 $\sim b\rightarrow\sim a$  

 $a\rightarrow b$  

 $\sim b\rightarrow\sim a$  

 $\sim a\rightarrow\sim b$  

 $b\rightarrow a$  

 $a\rightarrow b$  

$m\angle A+m\angle B+m\angle C\ =\ 360\degree$

$\frac{\left(n-2\right)180}{n}$

$a^2+b^2=c^2$

$m\angle A+m\angle B+m\angle C\ =\ 180\degree$

$m\angle1=180-\left(m\angle2+m\angle3\right)$

$m\angle1=m\angle2-m\angle3$

$m\angle1=m\angle2+m\angle3$

$m\angle1=180-m\angle4$

$\angle A\cong\angle A$

If $\angle A\cong\angle B$ , then $\angle A\cong\angle B$

If $\angle A\cong\angle B$ and $\angle B\cong\angle C$ , then $\angle A\cong\angle C$

If $\angle A\cong\angle B$ , then $\angle B\cong\angle C$

$\angle A\cong\angle A$

If $\angle A\cong\angle B$ , then $\angle A\cong\angle B$

If $\angle A\cong\angle B$ and $\angle B\cong\angle C$ , then $\angle A\cong\angle C$

If $\angle A\cong\angle B$ , then $\angle B\cong\angle C$

$\angle A\cong\angle A$

If $\angle A\cong\angle B$ , then $\angle A\cong\angle B$

If $\angle A\cong\angle B$ and $\angle B\cong\angle C$ , then $\angle A\cong\angle C$

If $\angle A\cong\angle B$ , then $\angle B\cong\angle C$

 $m=\frac{y_2-y_1}{x_2-x_1}$  

 $m=\frac{x_2-x_1}{y_2-y_1}$  

 $M\left(\frac{x_1+x_2}{2},\ \frac{y_1+y_2}{2}\right)$  

 $M\left(\frac{x_1-x_2}{2},\ \frac{y_1-y_2}{2}\right)$  

$\left(n-2\right)180$

$\frac{\left(n-2\right)180}{2}$

$\frac{\left(n-2\right)180}{n}$

$n-2\cdot180$

$\left(n-2\right)180$

$\frac{\left(n-2\right)180}{2}$

$\frac{\left(n-2\right)180}{n}$

$n-2\cdot180$

$y-y_1=m\left(x-x_1\right)$

$\left(x-h\right)^2+\left(y-k\right)^2=r^2$

$y=mx+b$

$Ax+By=C$

$y-y_1=m\left(x-x_1\right)$

$\left(x-h\right)^2+\left(y-k\right)^2=r^2$

$y=mx+b$

$Ax+By=C$

The sum of the interior angles of a polygon is $180\degree$

The sum of the interior angles of a polygon is $360\degree$

The sum of the exterior angles of a polygon is $180\degree$

The sum of the exterior angles of a polygon is $360\degree$

The midsegment of a trapezoid is the sum of the bases.

The midsegment of a trapezoid is the average of the bases.

The midsegment of a trapezoid is twice the size of the smaller base.

The midsegment of a trapezoid is half the size of the larger base.

$a^2-b^2=c^2$

$Hypotenuse=2\cdot Short\ Leg$

$Hypotenuse=Leg\cdot\sqrt{2}$

$a^2+b^2=c^2$

 $Hypotenuse=2\cdot Short\ Leg$  

 $Hypotenuse=Leg\cdot\sqrt{2}$  

 $Hypotenuse=Short\ Leg\cdot\sqrt{3}$  

 $Long\ Leg=Short\ Leg\cdot\sqrt{3}$  

$Hypotenuse=2\cdot Short\ Leg$

$Hypotenuse=Leg\cdot\sqrt{2}$

$Hypotenuse=Short\ Leg\cdot\sqrt{3}$

$Long\ Leg=Short\ Leg\cdot\sqrt{3}$

$\sin\left(angle\right)=\frac{opposite\ leg}{adjacent\ leg}$

$\sin\left(angle\right)=\frac{adjacent\ leg}{hypotenuse}$

$\sin\left(angle\right)=\frac{opposite\ leg}{hypotenuse}$

$\sin\left(angle\right)=\frac{adjacent\ leg}{opposite\ leg}$

 $\cos\left(angle\right)=\frac{opposite\ leg}{adjacent\ leg}$ 

 $\cos\left(angle\right)=\frac{adjacent\ leg}{hypotenuse}$ 

 $\cos\left(angle\right)=\frac{opposite\ leg}{hypotenuse}$ 

 $\cos\left(angle\right)=\frac{adjacent\ leg}{opposite\ leg}$ 

 $\tan\left(angle\right)=\frac{opposite\ leg}{adjacent\ leg}$ 

 $\tan\left(angle\right)=\frac{adjacent\ leg}{hypotenuse}$ 

 $\tan\left(angle\right)=\frac{opposite\ leg}{hypotenuse}$ 

 $\tan\left(angle\right)=\frac{adjacent\ leg}{opposite\ leg}$ 

 $r_{\left(90\degree,O\right)}\left(x,y\right)=\left(x,y\right)$  

 $r_{\left(90\degree,O\right)}\left(x,y\right)=\left(-x,-y\right)$  

 $r_{\left(90\degree,O\right)}\left(x,y\right)=\left(y,x\right)$  

 $r_{\left(90\degree,O\right)}\left(x,y\right)=\left(-y,x\right)$  

 $r_{\left(90\degree,O\right)}\left(x,y\right)=\left(y,-x\right)$  

 $r_{\left(180\degree,O\right)}\left(x,y\right)=\left(x,y\right)$  

 $r_{\left(180\degree,O\right)}\left(x,y\right)=\left(-x,-y\right)$  

 $r_{\left(180\degree,O\right)}\left(x,y\right)=\left(y,x\right)$  

 $r_{\left(180\degree,O\right)}\left(x,y\right)=\left(-y,x\right)$  

 $r_{\left(180\degree,O\right)}\left(x,y\right)=\left(y,-x\right)$  

 $r_{\left(270\degree,O\right)}\left(x,y\right)=\left(x,y\right)$  

 $r_{\left(270\degree,O\right)}\left(x,y\right)=\left(-x,-y\right)$  

 $r_{\left(270\degree,O\right)}\left(x,y\right)=\left(y,x\right)$  

 $r_{\left(270\degree,O\right)}\left(x,y\right)=\left(-y,x\right)$  

 $r_{\left(270\degree,O\right)}\left(x,y\right)=\left(y,-x\right)$  

 $r_{\left(360\degree,O\right)}\left(x,y\right)=\left(x,y\right)$  

 $r_{\left(360\degree,O\right)}\left(x,y\right)=\left(-x,-y\right)$  

 $r_{\left(360\degree,O\right)}\left(x,y\right)=\left(y,x\right)$  

 $r_{\left(360\degree,O\right)}\left(x,y\right)=\left(-y,x\right)$  

 $r_{\left(360\degree,O\right)}\left(x,y\right)=\left(y,-x\right)$  

 $A=4s$ 

 $A=s^2$ 

 $A=2b+2h$ 

 $A=bh$ 

$A=\frac{1}{2}bh$

$A=\frac{1}{2}\left(b_1+b_2\right)$

$A=\frac{1}{2}h\left(b_1+b_2\right)$

$A=\frac{1}{2}ap$

$A=\frac{1}{2}bh$

 $A=\frac{1}{2}d_1d_2$ 

$A=\frac{1}{2}h\left(b_1+b_2\right)$

$A=\frac{1}{2}ap$

$A=\frac{1}{2}bh$

 $A=\frac{1}{2}d_1d_2$ 

$A=\frac{1}{2}h\left(b_1+b_2\right)$

$A=\frac{1}{2}ap$

$A=\frac{1}{2}bh$

 $A=\frac{1}{2}d_1d_2$ 

$A=\frac{1}{2}h\left(b_1+b_2\right)$

$A=\frac{1}{2}ap$

$A=\frac{1}{2}bh$

$A=\frac{1}{2}s_1s_2\cdot\sin\left(included\ angle\right)$

$A=\frac{1}{2\ }bhw$

$A=\frac{1}{2}b\cdot\sin\left(included\ angle\right)$

length of arc $=\frac{arc\ measure}{360}\cdot d\pi$  

length of arc $=\frac{arc\ measure}{360}\cdot\pi r^2$ 

length of arc $=$  sector area $-$ segment area

length of arc $=\frac{\pi r^2}{360}$ 

Sector Area $=\frac{arc\ measure}{360}\cdot d\pi$  

Sector Area $=\frac{arc\ measure}{360}\cdot\pi r^2$ 

Sector Area $=$  sector area $-$ segment area

Sector Area $=\frac{\pi r^2}{360}$ 

Segment Area $=\frac{arc\ measure}{360}\cdot d\pi$  

Segment Area $=\frac{arc\ measure}{360}\cdot\pi r^2$ 

Segment Area $=$  sector area $-$ triangle area

Segment Area $=\frac{\pi r^2}{360}$ 

$F+E=V+2$

$F+2=V+E$

$E+V=F+2$

$F+V=E+2$

$D=\frac{m}{V}$

$D=\frac{V}{m}$

$D=\frac{area}{V}$

$D=\frac{m}{area}$

$LA=\pi rh$

$LA=\pi rl$

$LA=\pi dh$

$LA=\pi r^2h$

 $SA=\pi dh$ 

 $SA=\pi dh+2\pi r^2$ 

 $SA=\pi rl+\pi r^2$ 

 $SA=\pi r^2h$ 

 $V=\pi dh$ 

 $V=\pi dh+2\pi r^2$ 

 $V=\pi r^2h$ 

 $V=\frac{4}{3}\pi r^3$ 

 $LA=\frac{1}{2}rh$ 

 $LA=\frac{1}{2}pl$ 

 $LA=\frac{1}{2}pl+B$ 

 $LA=pl$ 

 $SA=\frac{1}{3}Bh$ 

 $SA=\frac{1}{2}pl$ 

 $SA=\frac{1}{2}pl+B$ 

 $SA=pl$ 

 $V=\frac{1}{3}Bh$ 

 $V=\frac{1}{2}pl$ 

 $V=\frac{1}{2}pl+B$ 

 $V=pl$ 

$LA=\pi rh$

$LA=\pi rl$