Question

Ans. (c) Idm.
Q. 12. In a right AABC, LB = 90°. If AC = 13 cm, BC = 5 cm, then find the length of AB.
(a) 12 cm
(b) 10 cm
(c) 25 cm
(d) 15 cm​

Answer 1

Answer:

option A is correct

Step-by-step explanation:

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Answer 2

Angle B = 90°

So, AC² = AB²+BC² (By Pythagoras Theorem)

or, AB² = AC²-BC² = 13²-5² = 169-25 = 144

or, AB² = 144

or, AB = √144 = 12

Hence option (A) 12 cm is correct answer.