Question

notes for maths 2 and 3d shapes ​

Answer 1

VOLUME
Cuboid=
$l \times b \times h$

Cube=
${l}^{3}$

Cylinder=
$\pi {r}^{2} h$
Cone=
$\frac{1}{3} \pi {r}^{2} h$
Sphere=
$\frac{4}{3} \pi {r}^{3}$
Hemisphere=
$\frac{2}{3} \pi {r}^{3}$
VERTICAL SURFACE AREA
Cuboid=
$2h(l + b)$
Cube=
$4 {l}^{2}$

CURVED SURFACE AREA
Cylinder=
$2\pi {r}h$
Cone =
$\pi rl$
Sphere=
$4\pi {r}^{2}$
Hemisphere=
$2\pi {r}^{2}$
TOTAL SURFACE AREA
Cuboid=
$2(lb + bh + lh)$
Cube=
$6 {l}^{2}$
Cylinder=
$2\pi r(h + r)$
Cone=
$\pi r(l + r)$
Hemisphere=
$3\pi {r}^{2}$
HOPE IT HELPS
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