leommarcoantonio
02.03.2020 •
Mathematics
Y'all this is circumference and area of a circle but we only wanna do 3.14 and not the whole pi value. And you can't round. Can you help me plz?...
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Ответ:
circumference: 18.84 cm area: 28.26 cm^2
Ответ:
D
Step-by-step explanation:
Using law of cosines,
b^2=c^2+a^2-2accosB
b=√(144+225-2*12*15*cos106)
b=√(369+99.23)
b=√468.23
b=21.64