Answer:
b.obtuse
Step-by-step explanation:
if it is obtuse it has 1 angle over 90° and two angles under 90°
Answer:
8.6E23
Step-by-step explanation:
The first one is rectangle
Answer:

Step-by-step explanation:
The formula to find the area and circumference of a circle is:

<em>*</em><em>no</em><em>te that pi is 3.14*</em><em> </em>Therefore the area is:

Therefore the circumference is:

Answer: 1733.28 in^2
Step-by-step explanation: