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which of the following shows the length of the third side, inches, of the triangle below?40 in10 in20 in850 in

Which Of The Following Shows The Length Of The Third Side Inches Of The Triangle Below40 In10 In20 In850 In class=

Sagot :

We have to apply the pythagorean theorem, since it's a right triangle:

c^2 = a^2+ b^2

c is the hypotenuse of the triangle ( longest side = 25 in) and a and b are the other 2 legs.

Replacing:

25^2 = 15^2+b^2

Solve for b ( missing side)

625= 225 + b^2

625-225 = b^2

400 = b^2

√400 = b

20= b

20 inches