how do you work out the perimeter and area of something?

Answer 1

Perimeter - add the lengths of the sides

Area - if it is a rectanglular / square area - multply the width by the length, otherwise you need to slpit it into separate areas, if the area is triangular its area is half of the corresponding rectangle etc...

Answer 2

Area of a parallelogram- length x width
Area of trapezoid- 1/2(base1 - base2)height
Area of rhombus- 1/2 x diagonal1 x diagonal2
Area of square- side squared
Area of triangle- 1/2 x base x height
Area of circle- pie x (radius) squared
Perimeter of a square- 4 x side
Perimeter of rectangle- 2 x base + 2 x height or base+height x 2
Perimeter is the length of all of the sides added together.
If you have a 45, 45, 90 degree triangle, (an isosceles right triangle) The length of the bases are =, and the hypotenuse is the length of a base x the square-root of 2.
In a 30, 60, 90 degree triangle the longer side is the square-root of 3 x the length of the shorter side. The hypotenuse is 2 x the length of the shorter side.

Answer 3

For the perimeter add all the side up and for the area multiply the length of two side of the sahpe although its different in the case of a triangle but im not gonna tell you about that.

Answer 4

the perimeter is the adding all the lengths of the sides together

area is found by multiplying the length by width

Answer 5

perimeter = length + length + width + width

area = length x width

i hope i helped you out i am really good at math so that should help you.

Answer 6

perimeter of a shape add up all the sides, area bxh

Answer 7

to find the area of a square you must know the outside measurements. then its length times width.

Answer 8

P= all sides added together

A= depends on what figure
Ex: square- base x height
triangle- 1/2 (base x height)

Answer 9

Depends on what the something is.

for instance, a rectangle
A=width*height
P=2*(width+height)

for a triangle
A=(width*height)/2
P=side+side+side

Answer 10

Goodness
Stay awake during class.