ABC is a triangle right angled at C if AB=25 cm and AC =7 cm.find AC – InterviewSolution

1.

ABC is a triangle right angled at C if AB=25 cm and AC =7 cm.find AC

Answer»

Using pythagoras theorem

(AB)²=(BC)²+(AC)²(25)²=(BC)²+(7)²625=(BC)²+49(BC) ²=625-49(BC)²=576BC=24

C is a right angleso AB^2=AC^2+BC^2BC^2=625-49=576so BC=24 cm

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