2013 · Q87
In a triangle ABC, ∠BCA = 90° and CD is perpendicular to AB. If AD = 4 cm and BD = 9 cm, then the value of DC will be
Elementary MathematicsGeometry
- A√18 cm
- B√20 cm
- C√35 cm
- D6 cm
Explanation
CD²=4×9=36→CD=6. Answer D.
In a triangle ABC, ∠BCA = 90° and CD is perpendicular to AB. If AD = 4 cm and BD = 9 cm, then the value of DC will be
Explanation
CD²=4×9=36→CD=6. Answer D.