flyingcerberus1408
25.06.2019 •
Mathematics
Athird of the sum of a number and ten is thirty
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Ответ:
b. 15π m
Step-by-step explanation:
The formula for the arc length (s) of a circle is
s = rθ
Data:
r = 10 m
Calculations:
The smaller angle is π/2.
The angle θ subtending XPY is 2π - π/2 = (3π)/2.
s = rθ = 10 × (3π)/2 = 15π m
The length of XPY is 15π m.