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san4es73 [151]
3 years ago
7

An arc of length 30 meters is formed by a central angle A on a circle of radius 15. The measure of A in degrees (to two decimal

places) is.... 114.59 - right?
Mathematics
2 answers:
Kruka [31]3 years ago
8 0

You were correct OP (at least on APEX)

Iteru [2.4K]3 years ago
3 0
An arc of length 30 m : l = 30 m.
r = 15 m,  ∠ A = ?
Formula for the length of an arc is:
 l = r π A / 180°  ( where A is the central angle )
A = l · 180 / r π = ( 30 · 180 ) / ( 15 · 3.1415926 ) = 114.43 °
This is very close to your result. 
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