Helen draws a random circle.
She then measures its diameter and circumference.
She gets a circ...
Mathematics, 14.05.2021 17:40 awsome12dusk
Helen draws a random circle.
She then measures its diameter and circumference.
She gets a circumference, C, of 405mm correct to 3 significant figures.
She gets a diameter, d, of 130mm correct to 2 significant figures.
Helen wants to find the value of π using the formula π=C÷d
Calculate the lower bound and upper bound for Helen's value of π.
Give your answers to 3 decimal places.​
Answers: 2
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