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bigmandavis
15.12.2019 •
Mathematics
which of the following triangles is not a right triangle?
a) 3 cm, 4 cm, 5 cm
b) 6 ft, 8 ft, 12 ft
c) 27 cm, 36 cm, 45 cm
d) none of the above
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Ответ:
Option b.
Step-by-step explanation:
Let's check each triangle with the Pythagorean Theorem:
Where "a" is the hypotenuse (the longest side) and "b" and "c" are the legs of the right triangle.
a) Given:
You get:
(This is a right triangle)
b) Given:
You get:
(This is not a right triangle)
c) Given:
You get:
(This is a right triangle)
Ответ:
x ≈ 9.7
how mny decimal places do u need?
Step-by-step explanation:
3( x-3 )= 20
>3x - 9 = 20
>3x = 29
> x= 9.66666667