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Mathematics 19 Online
OpenStudy (yatonoragami):

Help me through? Circle A has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. The diameter of circle B is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points) Part B: Use the formula for area and solve for the value of pi for each circle. (4 points) Part C: What observation can you make about the value of pi for circles A and B? (2 points)

OpenStudy (misssmartiez):

Part A) C = D x Pi if Diameter is given. if not, Rx2xpi. So, Circle B has a 6 Dimeter range right? So 3.14 x 6 = ?

OpenStudy (misssmartiez):

Part B) D / 2 = 3. Radii 3. So, now. Formula for Area, radii x radii x 3.14 3 x 3 x 3.14 is?

OpenStudy (misssmartiez):

Now, I don't get this. Is there a worksheet or a picture or something? Because, what 'circles' do they want us to find the C and A?

OpenStudy (misssmartiez):

They give us the answer. Mind elaborating?

OpenStudy (yatonoragami):

There is nothing too help us here is the full question Circle A has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. The diameter of circle B is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points) Part B: Use the formula for area and solve for the value of pi for each circle. (4 points) Part C: What observation can you make about the value of pi for circles A and B? (2 points)

OpenStudy (yatonoragami):

I dont understand the first part though. vv @MissSmartiez

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