Mathematics, 18.04.2021 14:50 FlowerChild1229

Helen draws a random circle. She then measures its diameter and circumference.
She gets a circumference, C, of 405 mm correct to 3 significant figures.
She gets a diameter, d, of 130 mm correct to 2 significant figures.
Helen wants to find the value of it using the formula n =
1 =
Calculate the lower bound and upper bound for Helen's value of .
Give your answers correct to 3 decimal places.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 21:40, bella7524

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Answers: 1

continue

Mathematics, 21.06.2019 22:40, winterblanco

Use this graph to find the cost of 6 show tickets

Answers: 1

continue

Mathematics, 21.06.2019 23:00, emiliestinnett

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer

Answers: 2

continue

Mathematics, 22.06.2019 00:40, maxherman

Point b lies between points a and c on . let x represent the length of segment ab in inches. use the segment to complete the statements. the value of x is . the length of in inches is . the length of in inches is .

Answers: 3

continue

You know the right answer?

Helen draws a random circle. She then measures its diameter and circumference.
She gets a circ...