ninasalam14 ninasalam14

15-02-2021
Mathematics

contestada

Given that A=378cm² and π=3.14. find the value of r to 2d.p

Respuesta :

monica1668 monica1668

15-02-2021

Answer:

r=7.76cm

Step-by-step explanation:

A=2πr²

378=2×3.14×r²

378=6.28×r²

378=6.28r²

divide both side by 6.28

r²= 60.191082802547

square root b/s

r=7.75829123 to 2 d.p

r=7.76

Hope this helps

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