If that triangle is a right triangle, you could use (180 - (90 + 12)) to find the other angle.
Answer:
the answer is D) 5cm
Step-by-step explanation:

It is square root of 495.
Use Pythagorean theorem.
We have A and C.
Subtract 81 from 576 to get 495.
To find x, un square both sides to get
About 22.2485955
Or 22.2 or 22 depending if we round.
For this case we have the following number:

What we must do is rewrite the number as the product of two numbers.
We have then:

From here, we write the number as the multiplication of a whole number and a power of base ten.
We have then:

Where,
: whole number
: power of base 10
Answer:
The distance written as a whole number multiplied by a power of ten is:
