What dose perimeter mean? i need hlep

Perimeter means the the outside of something. You can calculate perimeter of adding up all the sides of a rectangle,triangle,square etc... For Example You have a Rectangle With Two Sides Having a width of 3cm and two sides having a Length of 5cm. To find the perimeter you must add 5+5+3+3 and get 16cm. 16cm is your perimeter of the rectangle

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.