Question

Distance between two points (0,6), (x,-6) is 20 unit. Find x​

Answer 1

Answer:

{(0-x) ^2+(6+6) ^2}=20×20 (by distance formula)

0+x^2-0+144=400

x^2=400-144

x^2=256

x=+16 or x=-16

Hence, the value of x is 16 or -16.

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