Ellis's backyard has a
6.25
6.256, point, 25 by
6.25

m
6.25m6, point, 25, start text, m, end text patio. She would like to build a
1.5

m
1.5m1, point, 5, start text, m, end text wide extension around
3
33 sides of the patio, as the figure shows. She will buy
0.25
0.250, point, 25 by
0.25

m
0.25m0, point, 25, start text, m, end text tiles that come
25
2525 to a package.

extension patio
How many packages does Ellis need to buy to build the extension?

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

i would love   to but there is no graph shown

step-by-step explanation:

i am so sorry