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A student was to find the area of a circle. By mistake he used the value 3.41 instead of 3.14, the value of pi; his answer was consequently 10.2 too large. Find the radius of the circle.

Respuesta :

tysonsean0
0.5 is the answer plz mark me as brainliest answer
apologiabiology
area=pir²


areamistake=31.4r²
areactual=3.14r²

if
31.4r² is 10.2 bigger than 3.14r²
then
31.4r²=10.2+3.14r²
minus 3.14r² from both sides
28.26r²=10.2
divide both sides by 28.26
r²=0.36093418259023354564755838641189
squaer root both sides
r=0.60077798111301777772277024274837
about 0.6 units

the radius is 0.6 units