Question

the hypotenuse of a rightangle traingle 25 m if one of the other two sides is 20 m find the lenght of its tird side

Answer 1

Answer:

S2=15m

Step-by-step explanation:

By Pythagoras Theorem

(hypo)²=(S1)²+(S2)²

(25)²=(20)²+(S2)²

625=400+(S2)²

(S2)²=625-400

(S2)²=225

√(S2)²=√225

S2=15m

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Answer 2

Hypotenuse: 25m = AC, Another side = AB = 20m

Ac^2=AB^2+BC^2

BC^2=AC^2-AB^2

BC^2=25^2-20^2

BC^2= 625-400

BC^2= 125

BC=root over 125 = 15