3 years ago

A 2p coin has a radius of 1.3 cm

Mathematics

2 answers:

Nesterboy [21]3 years ago

8 0

Answer:

hello! As I think it is 2p coin but not sure

Mariana [72]3 years ago

7 0

2P
R=1.3
Formula for area= pi times radius squared
= pi* 1.3 squared
=5.31

1P
D=1.8
Area= radius squared we have a diameter so since the radius is half of a diameter we need to have 1.8 which is 0.9 then we would square 0.9 and times it by pi since its now a radius
=0.9 squared times pi
= 2.544690049 round it to 2dp= 2.54
Hope this helped

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