Find the values of the variables! Please help! I’ll give brainliest to the first person :)))

b = 7 and a = 7

Step-by-step explanation:

This is because the angle across from 90 degrees equals 14. and this is a 30 - 60 - 90 triangle. therefore the unknown angle is 30 degrees. Which makes b half of the hypotenuse, or 14, so it becomes 7. and the side opposite to 60 degrees is root 3 times whatever b is. so a becomes 7 root 3. Hope this helps.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.