The length of your rectangular backyard is 275 feet and the width is 125 feet. you want to enclose the backyard with chain link fence that is $1.25 per foot.

will mark the right one brainilist
tbh i dont really know how to spell brainilist .

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

6 equilateral triangles

it's possible to build a triangle with side lengths of 3, 3, and 9.- true ( b.)