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In a right-angled triangle ABC, if angle B = 90°, then which of the following is true?

#### Options

AB

^{2}= BC^{2}+ AC^{2}AC

^{2}= AB^{2}+ BC^{2}AB = BC + AC

AC = AB + BC

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#### Solution

**AC ^{2} = AB^{2} + BC^{2}**

**Explanation:**

According to Pythagoras theorem,

(Hypotenuse)^{2} = (Perpendicular)^{2} + (Base)^{2}

⇒ AC^{2} = AB^{2} + BC^{2}

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