What is the length of angle EF in the right triangle below
![What is the length of angle EF in the right triangle below class=](https://us-static.z-dn.net/files/d2b/d0f2638336b20b23f19f0f79cb69659d.png)
Answer:
E. √180
Step-by-step explanation:
Using Pythagoras' theorem
a^2 + b^2 = c^2 (c = hypotenuse, a and b are legs)
a^2 = c^2 - b^2
a^2 = 18^2 - 12^2
a^2 = 324 - 144
a^2 = 180
a = √180
Answer
E. √180