eddie828
29.09.2019 •
Mathematics
Acircle has a radius of 3m. find the length s of the arc intercepted by a central angle of 146
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Ответ:
s=Θ/360πd
d=3*2=6m
Θ=146
hence;
s=146/360*π*6
s=7.65 m
Ответ:
= Sh. 2281.50
Step-by-step explanation:
Area of the path;
(126 × 2.5 ) + (2.5 × (48 - (2.5×2)
= 315 + (2.5 × 43)
= 315 + 107.5
= 422.5 m²
But; the cost of graveling is sh 5.40 per square meter
Therefore; The cost of graveling the whole path;
= 422.5 × 5.40
= Sh. 2281.50