Answer:
18 centimeters
Step-by-step explanation:
The formula for finding the perimeter is side + base+side . There for you do 6+6+6
that gives you 18
Add up all the rainfall amounts and divide by 11
I believe it is.... (2,2)or(4,4)
Answer:

Step-by-step explanation:

Opposite = BC ,
Adjacent = AB = x = 3 ,
Hypotenuse = AC = y = 22
<em><u>Using trigonometric ratios.</u></em>

Since we have adjacent and hypotenuse we use cosine's ratio
to find the angle.

Rectangular book
two 8 1/2 sides
two 9 1/4 sides
8 1/2*2=17
9 1/4*2=18 1/2
17+18 1/2= 35 1/2
The perimeter of the textbook is 35 1/2 inches or 35.5 inches.
Hope this helps :)