Distance of point from y-axis is 4 units and from the origin is 8 units. The distance of the point from y-axis is:
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Answer:
The length of AB will be 5 units
Step-by-step explanation:
Given that,
Point A is on y-axis at 4 unit
=> distance OA = 4
Point B lies at co-ordinate (-3,0)
=> distance OB = 3 units
since AOB is a right angled triangle, irrespective of the direction of point A with respect to the origin
hence according to Pythagoras theoram,
AB² = OA² + OB²
=> AB² = 4² + 3²
=> AB² = 16 + 9 = 25
=> AB = 5 units
Hence the length of AB will be 5 units
Step-by-step explanation:
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