# Unit 3: 2D Shapes and 3D Solids

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Formula for the area of a Quadilateral
h x b
1 of 12
Formula for the area of a Triangle
b x h ÷ 2
2 of 12
Formula for the area of a Parrellogram
h x b
3 of 12
Formula for the area of a Trapezium
( a + b ) ÷ 2 x h
4 of 12
Formula for the area of a Circle
π x r²
5 of 12
Formula for the circumference of a Circle
π x d
6 of 12
Formula for the circumference of a Semi-Circle
( π x d ) ÷ 2 ) + d
7 of 12
Formula for the area of a Semi-Circle
( π x r² ) ÷ 2
8 of 12
Formula for the volume of a Triangular Prism
( b x h ) ÷ 2 ) x depth
9 of 12
Formula for the volume of a Cylinder
π x r² x h
10 of 12
Formula for Pythagoras Theorem
a² + b² = c²
11 of 12
Formula for the surface area of a Cylinder
( 2 π x r² ) + ( π x d x h )
12 of 12

## Other cards in this set

### Card 2

#### Front

Formula for the area of a Triangle

b x h ÷ 2

### Card 3

#### Front

Formula for the area of a Parrellogram

### Card 4

#### Front

Formula for the area of a Trapezium

### Card 5

#### Front

Formula for the area of a Circle