You want to find the area of the circle. The formula for the area of a circle is A=πr^2 (Area=pi times radius squared). The diameter is the distance across the circle. Radius is half the diameter. Diameter=3. 3 divided by 2 equals 1.5. So, plug it into the equation. A=π1.5^2 (Area=pi times 1.5 squared).
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Numerical methods; Rearrange your equation; Find the negative root of fact equation. Then you have your answer.
Answer:
40/9
Step-by-step explanation:
9y = -8x + 40
y = -8/9x + 40/9
Its a obtuse angle since 7^2 is 49 7^2 is 49 and 12^2 is 144
144 is bigger than 90 so its obtuse triangle
