Question

7. In a right triangle ABC,B= 90°.
(b) If AC= 13 cm, BC=5 cm, find AB

Answer 1

Answer:

Step-by-step explanation:

In ABC ,B=90°,AC=13,BC=5

Then,by pythagoras thm.

AC^2=BC^2 +AB^2

13^2= 5^2+AB^2

169=25+ AB^2

169- 26 =AB^2

144 = AB^2

12 = AB

AB= 12

Hope it helps