Question

in ∆ A B C. (AC) =7.5cm, m A B C = 90°.(BC) =5.5​

Answer 1

Answer:

AB = 4cm

Step-by-step explanation:

according to Pythagoras theorem

AC² = AB² + BC²

7.5² = X² + 5.5² (HERE AB IS CONSIDERED AS X)

56.25 = X² +30.25

56.25 - 30.25= X².

X² = 36

X = +4 OR -4

X = +4 (BECAUSE SIDES CAN'T BE IN NEGATIVE VALUE)

AB Is Equal To 4cm

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Answer 2

Ab = 4cm

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