Answer:
A triangle is dilated by scale factor of 1/5
Step-by-step explanation:
A triangle has three sides. All the corresponding angles of triangle must be congruent. When the triangle is dilated it is rotated 90 degrees clockwise about its origin. The shape of the triangle will not change due to rotation of dilation.
Hope this helps :) good luck!!!
im not for sure but I think the answer is 9! my reasoning is below,,
Step-by-step explanation:

do the crossing method and it would result in this
(49×x) = (63×7)
after simplifying both sides
49x = 441
divide both sides by 49 and the result will be
x = 9 !!
Answer:
12xy
Step-by-step explanation:
For rectangle A, the length would be (x+3x) and the width would be 3y, so 4x*3y = 12xy