If ΔABC≅ΔDEF, AB = 5 cm, BC = 6 cm, AC = 7 cm, then the length of EF is:
1 cm
6 cm
7 cm
5 cm
ΔABC≅ΔDEF ⇒ AB = DE, BC = EF, AC = DF Since, BC = EF ⇒ EF = 6 cm Hence, the length of EF is 6 cm
In the figure, AQ, AR and BC are tangents to circle with centre O, if AB = 7 cm, BC = 5 cm, AC = 5 cm, then length of the tangent AQ is: