Mary has a rectangular garden that measures 16 yards by 8 yards. One of the long sides runs along a wall, and Mary wishes to use fencing to finish enclosing the garden. How much fencing does she need? How many square yards does she have for planting her garden?

32 yards, 128 square yards.

Step-by-step explanation:

Given:

Length of rectangular garden = 16 yards

Breadth of rectangular garden = 8 yards

One of the long sides runs along a wall.

Mary wishes to use fencing to finish enclosing the garden.

To find:

How much fencing does she need ?

How many square yards does she have for planting her garden means area of rectangular garden = ?

Solution:

To find that how much fencing she need we must know that we have three side to fence because at one side there is a wall so no need to fence and we have one length and two breadth.

She need for fencing = perimeter of rectangular garden - one side length  

                                   =

                                   =

                                   =

                                   = yards

Thus, She need 32  yards for fencing the rectangular garden.

Now, we will find How many square yards she have for planting her garden.

Area of rectangular garden =

                                              =

Thus, she have 128 square yards for planting her garden.

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: