ADEF is a dilation of AABC by a scale factor of . Which of the following proportions verifies that AABC and ADEF are similar?
E
R
15
12
5
4.
А з с
D 9
T7
O A. AB
=
DE
BC
EF
B.
AB
AC
DE
EF
C.
AB
DE
AC
DF
D.
DE
AB
BO
DF

Use pythagorean’s theorem and find the missing side lengths of the two smaller triangles and add them together
13^2 - 12^2 = 5
15^2 - 12^2 = 9
5+9 = 14
14 is the length of each side of the square
14^2 + 14^2 = 19.8
19.8 is the diagonal length of the inside if the square

Let's assume we were given 2 numbers: 15 and 30. their sum is: we want to express it as the product of gcf and another sum.15 is divisible by: 1, 3, 5, 1530 is divisible by: 1, 2, 3, 5, 6, 10, 15, 30the greatest number that appears in 2 series is 15.in this case sum of two numbers can always be written as: