xolocsin
03.03.2021 •
Mathematics
Simultaneous Equation
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Ответ:
x = 5 ,
y = 3
Use substitution method .
Ответ:
A right angle has a value of 90 degrees (90∘ ). A right triangle is a triangle in which one angle is a right angle. The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse (side c in the figure).