Geometry

Formulas

100

Area of a square...

BxH

200

Area of a triangle...

1/2 BxH 

300

Volume of a prism...

LxWxH

400

Formula for radius...

1/2 D

500

Area of a circle...

Pi R₂

Volume

100

rectangular prism=

W=1 L=2 H=3

V=?

V=6

200

prism=

W=2 L=2 H=2

V=?

V=8

300

rectangular prism=

W=3 L=2 H=5

V=?

V=30

400

rectangular prism=

W=10 L=2 H=3

V=?

V=60

500

prism=

W=5 L=? H=2       V=50

L=?

L=5

Diameter and radius

100

R=4

D=?

D=8

200

R=13

D=?

D=26

300

D=90

R=?

R=45

400

R=46

D=?

D=92

500

R=123

D=?

D=246

Angles

100

An angle is 90^o  ,what is it?

Right angle

200

An angle is 180^o , what is it?

a straight angle

300

An angle that is less than 90^o , what is it?

Acute 

400

An angle is more than 90^o, what is it?

Obtuse

500

An angle that has made a complete circle , what is it?

Complete angle