Question

Please help I’m not sure what it is don’t make fun I’m not good at math

Answer 1

3.75 or 3
`(3)/(4)`

Explanation:

The first thing we can find is the scale factor of the two triangles. You can see that the corresponding sides AB and A'B' are 2 and 8 respectively, and since the two triangles are similar, you can say that triangle ABC is shrunk by a factor of 2/8 or 1/4.

Next, we need to figure out what side B'C' is and we can do this using the Pythagorean theorem
`a^(2)`+
`b^(2)` =
`c^(2)`. Using this, we know that
`8^(2)`+

Now, since ABC is shrunk by 1/4 and the corresponding side of BC is equal to 15, we need to multiply 15 by 1/4 and you would find that BC is 3.75 or 3
`(3)/(4)`.