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fenix001 [56]
3 years ago
7

Find the length of side

Mathematics
2 answers:
DochEvi [55]3 years ago
7 0

Answer:

2

Step-by-step explanation:

Pythagoras. c² = a² + b²

since both "side angles" are equal (45 degrees), we know it is an isosceles triangle, that means also the other side = x.

and so,

8 = x² + x² = 2x²

4 = x²

x = 2

omeli [17]3 years ago
3 0

Answer:

x = 2

Step-by-step explanation:

sin(45)/x = sin(90)/\sqrt{8}

\sin \left(45^{\circ \:}\right)=\frac{\sqrt{2}}{2}

x = \sqrt{8} \sin \left(45^{\circ \:}\right)

x = \sqrt{8}  \frac{\sqrt{2}}{2}

x = \frac{\sqrt{16}  }{2}

x = 4/2

x = 2

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