1/2 bh

1/2 (d1)(d2)

$b\cdot h$

$s^2$

$b\cdot h$

1/2 (d1) (d2)

$\pi r^2$

$\frac{1}{2}\left(a\right)\left(p\right)$

$b\cdot h$

$\frac{1}{2}b\cdot h$

$2l\ +2w$

$\pi r^2$

$2\pi r$

$\pi r^2$

$\frac{1}{2}d_1d_2$

$\frac{1}{2}\left(a\right)\left(p\right)$

$mx+b$

$\pi r^2$

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

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

$\pi r^2$

$b\cdot h$

Bh

1/2 (d1+d2)

1/2 (a) (p)

Bh

Bh/3

$\pi r2$

Bh

Bh/3

Bh

s3

s2

Bh

4 $\pi r2$

$\pi r2h$

Bh

Bh3

$\frac{\pi r2h}{3}$

$\pi r2h$

$\pi r2h$

$\frac{\pi r3}{3}$

$\frac{4\pi r3}{3}$

$\frac{\pi r3}{3}$

2 $\frac{\pi r3}{3}$

4 $\frac{\pi r3}{3}$