What is the approximate circumference of the circle? what is the height of the parallelogram? what would be the approximate length of the parallelogram if the base were completely straight? what would make the estimation of the circle’s area more precise? what is the area of the circle used to create the parallelogram-like shape to the nearest tenth of a square unit?

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

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step-by-step explanation: