Question

4ABC is right-angled at C. If AC =5 cm and BC =13 cm, find the length AB.​

Answer 1

Answer:

ABC is right-angled at C.

AC=5cm, BC=13cm, AB=?

By the Pythagorous Theorm,

(AB)^2=(AC)^2+(BC)^2

(AB)^2=(5)^2+(13)^2

(AB)^2=25+169

(AB)^2=194

AB=√194 square cm.

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