villain11
villain11 villain11
  • 23-05-2018
  • Mathematics
contestada

is DEF a right triangle? True or false

is DEF a right triangle True or false class=

Respuesta :

jcherry99
jcherry99 jcherry99
  • 23-05-2018
Short answer = false
Remark

If it is a right triangle, it will obey the Pythagorean Equation. a^2 + b^2 = c^2. Let's see if it does.

Equation
a^2 + b^2= c^2
c must be the longest line. (Hypotenuse)

Givens
a = 24
b = 17
c = 40

Sub and Solve
a^2 + b^2 = c^2
17^2 + 24^2 = c^2 [We'll see if this comes out to 40]

289 + 576 = c^2
865 = c^2 which is no where near what 40^2 equals. 40^2 = 1600

Short answer False

Square root of 865 = (865)^1/2 = 29.4
Answer Link

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