MCQ
Which of the following points are 10 units from the origin:
- A(6, 4)
- B(-6, 8)
- C(6, -8)
- D(-6, -8)
Which of the following points are 10 units from the origin:
Solution:
$\text{A} =\sqrt{ (6-0)^{2}+(4-0)^{2}} = \sqrt{52}$
$\text{B} =\sqrt{ (6-0)^{2}+(8-0)^{2}} =10$
$\text{C} =\sqrt{ (6-0)^{2}+(-8-0)^{2}} =10$
$\text{D} =\sqrt{ (-6-0)^{2}+(-8-0)^{2}} =10$
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