geo formulas GAT

Area of a parallelogram

bh

Area of rhombus

1/2d¹d² = bh

Area of rectangle

bh

area of square

s²

Area of trapezoid

1/2h(b¹+b²)

Area of kite

1/2d¹d²

Perimeter of a parallelogram

2(b+h)

Perimeter of a rhombus

4s

Perimeter of a rectangle

2(b+h)

Perimeter of a square

4s

Perimeter of a trapezoid

Add all sides

Perimeter of kite

Add all sides

Lateral area of Cube

4s²

Surface area of cube

6s²

Volume of a cube

s³

Lateral area of a rectangular prism

(2l+2w)h

Surface area of rectangular prism

2lw + 2lh + 2hw

Volume of rectangular prism

lwh

Lateral Area of a Cylinder

2πr * h

Surface area of cylinder

2πr² + 2πrh

Volume of a cylinder

πr² * h

Length of an intercepted arc

Area of a sectir

.

Sum of interior angles of a polygon

( number of angles - 2 ) * 180

Sum of exterior angles of a polygon

360

measure of interior angle of regular polygon

( (n - 2) * 180 ) / n

mwasure of each exterior angle of a regular polygon

360 / n

How many degrees is π ?

180°

Shape area hierarchy (if perimeter is the same)

Circle is bigger than square. Square is bigger than rectangle, triangle and trapezoid.

shapes perimeter heirarchy (if area is the same)

rectangle, triangle, and trapezoid are bigger than square. square is bigger than circle.

(hint: basically, it’s the opposite of the other rule. you just invert them.)