If is an acute triangle, all the angles should be acute angles.
180-38=142°
142-69=73°
So your answer is 69°, lovely~
/If you solve for x you will get -7/2.
<span>It could be C. If the blade spends twice in a minute, it would be 30 seconds. 30=2pi/B=pi/15. </span>
The answer to your question would have to be 3060
3/4 x 2/3 = 6/12 6/12=1/2
So the square root of 5 (C.)