Similar polygons are made through scaling either by stretching or squeezing the sides all by a common ratio. Here, the size changes. Congruent polygons are made by shifting or reflecting their position. Here, the size does not change.
Choice A has a dilution (or squeezing) and a translation (shifting). That makes similar polygons.
Choice B has a rotation. Nope.
Choice C has a shifting and a reflection. Nope.
Choice D has a rotation and shifting. Nope.
Thus choice A is best.
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Answer:
Step-by-step explanation:
Side lengths in an isosceles right triangle have the reduced ratios ...
1 : 1 : √2
Yours have the ratios ...
9 : x : y
If you multiply the reduced ratios by 9, you can find the values of x and y.
9 : 9 : 9√2 = 9 : x : y
x = 9
y = 9√2
Answer:
the money they need (1650$) minus the money they made (600$)
= 1050
1050 divided by 3 = 350
so they each need to make 350$
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Let n= Number of packs John needs.
Tiles in 1 pack = 6
Tiles in <em>n</em> pack = <em>6n</em>
If he needs at least 100 tiles.
then
6n ≥ 100

The required inequality: 
Answer:
4.05 meters or 405 cm
Step-by-step explanation:
The equation to use is
(x - 330) x 5 = x - 30
330 is equal to 3.30 meters.
Then solve the equation.
(X - 330) x 5 = x - 30
5x - 1650 = x - 30
-x
4x - 1650 = -30
+1650 + 1650
4x = 1620
/4 /4
X = 405cm