Answer:
I HELPED :D
Step-by-step explanation:
You can compose, or create, a parallelogram (a four-sided shape with two sets of opposite, parallel sides) using two shapes, such as triangles or squares. You can decompose, or take apart, a parallelogram by dividing it from opposite corners, either vertically or horizontally.
If you cut the rectangle (the wall) diagonally, you get two congruent triangles. The measurements of the sides of one the triangles is 8, 15 and x. There is a pythagorean triples 8, 15, 17 so x has to be 17. if you dont know the triple you can do a^2 + b^2 = c^2 8^2 + 15^2 = c^2 c = 17
the diagonal of wall should be 17
Answer:
3 quarters 9 dimes
Step-by-step explanation:
D=dimes
D-6=quarters
0.10 D + 0.25(D-6) = 1.65
0.10D + 0.25D - 1.5 = 1.65
0.35D = 3.15
Dibide both sides by 0.35
D =9
Q= D-6 Q = 9-6 Q=3
9*0.10 =90 3*0.25= 0.75
$0.75 + $0.90 =$ 1.65
The first triangle you do 1/2 of 9 x 18 then the second one is 1/2 of 9 x 9 and then you add the two.
