Two right triangles are similar. the legs of one of the triangles are 5 and 12. the second right triangle has a hypotenuse with a length of 39. what is the scale factor between the two triangles?

a. 4: 3
b. 1: 3
c. 2: 6
d. 1: 2

b. 1:3

Step-by-step explanation:

To find the hypotenuse of the first triangle, use a^2 + b^2 = c^2

c = sqrt (5^2 + 12^2)

c = 13

From here, since they are similar, you can set up a proportion

13:39

1:3

3; 9 is 8 to -4

step-by-step explanation:

i think the answer is b.

step-by-step explanation:

not 100% sure though.