Question

please answer this
I'll mark you as brainiest
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Answer 1

Answer:

verify that the ratio of the circumference of a circle to its diameter is a constant number 3.14 by using different circular object such as bangles coins

Answer 2

Solution

If R, Q and P are the midpoints of AB, AC and BC, and by applying the theorem:-

The line segment joining the midpoints of two side of a triangle is parallel to the third side and equal to half of it, we get

PQ=21AB=AR and PQ∣∣AR

PQ=21AC=AQ and PR∣∣AQ

Since the above conditions are sufficient for a parallelogram, therefore ARPQ is a parallelogram.

∴ Perimeter of ARPQ=2(AR+AQ)=AB+AC=(30+21)cm=51cm