Sara63
Answered

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(link to the maths question) can anyone help?

Link To The Maths Question Can Anyone Help class=
Link To The Maths Question Can Anyone Help class=

Sagot :

apologiabiology
first one

20cm=diameter
perimiter of this one is (pi times radius^2)divided by 2+ 20

diameter=2radius
radius=diameter times 1/2
diameter=20
20/10=radius=10

3.14 times 10^2=314
314 times 1/2=157
157+20=177 cm
perimiter=177 cm
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