$\pi r^2\times h$  

 $\pi r^2$  

 $2\pi r$  

 $2\pi rh$  

$\frac{1}{2}\times l\times b\times h$

$l^3$

$l\times b\times h$

$2lb+2bh+2lh$

$4\pi r^2$

$\frac{4}{3}\pi r^2$

$\frac{1}{3}\pi r^2$

$\frac{1}{2}\pi r^2$

1 square and 3 congruent triangles

1 square and 4 congruent triangles

2 squares and 4 congruent triangles

1 square and 3 congruent triangles