Question

Triangle ABC is right angled at B. If AC = 25cm and AB = 24cm, find BC.​

Answer 1

Step-by-step explanation:

Know sum of angles of triangle = 180°

25 + 24 + x = 180

49 + x = 180

x = 180-49

x = 171

Answer 2

Step-by-step explanation:

BY pythagorean triplet AB2

=AC^2 +BC^2

⇒(25×25)^2=7^2+BC^2

⇒625=49+BC^2

⇒BC^2

=625−49

⇒BC^2 =576

BC= 576

=24cm

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