Answer: Yes, a triangle has side lengths 6, 8, 10 is it a right triangle.
Step-by-step explanation:

In this case, the pattern is the number, in this case, 3, multiplied by the number below it.
See?

Hope this helped :)
Answer:
b
Step-by-step explanation:
If you multiple each side by 3 then they will equal the numbers that b has
Answer:

Step-by-step explanation:
Both legs are equal, which implies the triangle is a 45-45-90.
The hypotenuse of this triangle is: 
It's multiplication. Simply multiply 0.3 by 4. How multiplying dedcimals works is that we forgett the decimal until later. So, first we have 3 times 4. What's that? 12. And how many numbers did we have after the decimal? One. So, we hop over one decimal space to receave the answer 1.2. I hope I helped!!!