Toady7396
21.03.2020 •
Mathematics
B R S are two points on a circle,
Centre O.
TS is a tangent to the circle.
Angle RST = x
Prove that ROS=2X
You must give reasons for each stage
of your working
Solved
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Ответ:
Proved!
Step-by-step explanation:
Since TS is a tangent to the circle, ∠TSO = 90°.
Hence, ∠OSR = 90° - x.
Since OS and OR are radius, OS = OR.
So, ∠ORS = ∠OSR = 90° - x.
Thus, ∠ROS = 180° - ∠OSR - ∠ORS = 180° - 2 * (90° - x) = 180° - 180° + 2x = 2x.
So, it is proved.
Ответ:
Math term :
The result obtained when a number is multiplied by one digit of a multiplier