Classify the following triangle as acute, obtuse, or right.
A. Right
O
B. Obtuse
O
C. Acute
O
D. None of these

Acute

Step-by-step explanation:

an acute triangle is a triangle where all the angles are less than 90°. in this triangle, all the angles are 60°, which is less than 90°, so the triangle is acute.

Hope this helps :)

Acute

Step-by-step explanation:

Technically that is an equilateral triangle but those can be classified as acute triangles.    

300 liters.

Step-by-step explanation: It says we gain 15 liters per minute. Therefore, by simply taking 15 and multiplying it by 5, we get 75. We then add that to what the sensor has, due to it not having any time once it reached 225 liters.

Not relevant to the question, but just incase, by looking at 225 liters being in the tank, we know that it's been 15 minutes before the sensors started working.