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Devon designed a sign for his company. The sign is in the shape of a triangle with side lengths of 7 feet, 9 feet, and 15 feet. Explain how you know that Devon’s sign is not a right triangle.

Sagot :

VilesXidn
Given:
a = 7
b = 9
c = 15

If this is a right triangle c would the hypotenuse
by Pythagorean theorem
where the  hypotenuse or c = [tex] \sqrt{a^2+b^2} [/tex]

[tex]c = \sqrt{7^2+9^2} [/tex]

[tex]c = \sqrt{130} [/tex]

since c was [tex]\sqrt{130} [/tex]and not equal to 15 the triangle is not a right triangle.