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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If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32
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