360°. The 4 internal angles of a 4 sided shape will always add up to 360°.
Information on what? I want to help, but I am confused.
Answer:
Choice B, 90
Step-by-step explanation:
Equation: <em />
diameter is twice the radius.
2.5^2=6.25
6.25 π ≈19.625
5 π ≈15.70
15.70*2=31.4
31.4+19.625=51.025cm^2