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zlopas [31]
3 years ago
10

DEF is a right triangle. A. True B. False

Mathematics
2 answers:
Vika [28.1K]3 years ago
8 0

------------ False-----------

~ APEX

~ took the quiz

----------------- <3---------------------

Sonbull [250]3 years ago
5 0

Given <u>triangle</u> DEF with the <u>lengths</u> of all <u>sides</u>. If you want to check whether this triangle is <u>right</u>, use the <u>Pythagorean theorem</u>. The greatest side is EF, then only this side could be the hypotenuse.

Check, whether

EF^2=ED^2+DF^2.

Substitute ED=25, EF=48 and DF=27:

DF^2+DE^2=27^2+25^2=729+625=1354,\\ \\EF^2=48^2=2304.

Since 1354\neq 2304, the triangle DEF is not right triangle.

Answer: correct choice is B


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