Question

In right angle triangle ABC,AB= 4,BC=3 then find AC

Answer 1

AB^2 + BC^2 = AC^2

16 + 9 = AC^2

AC = 5 Cm

Answer 2

Ello there!

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Concepts to know before answering this question

Pythogoras Property/Theorem.

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Answer

In ΔABC

∠B = 90°

AB = 4

BC = 3

AC = ?

Since one angle is 90°, we use "Pythagoras Property" to find the value of it.

According to the Pythagoras Property,

Hypotenuse² = Base² + Altitude²

              AC² = AB² + BC²

              AC² = 4² + 3²

              AC² = 16 +  9

              AC² = 25

               AC = √25

              AC = 5       (5² = 25)

Therefore the length of AC is 5

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Hope It Helps!