ah178273 ah178273
  • 02-05-2020
  • Mathematics
contestada

Use a special right triangle to express sin 45 degrees as a fraction

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surjithayer10 surjithayer10
  • 02-05-2020

Answer:

Step-by-step explanation:

in a right angled triangle angles given are 45,90

Then third angle is also 45 °

as two angles are 45° each.

Then sides are also equal.

Let the equal sides be each =x

then hypotenuse=√(x²+x²)=√(2x²)=x√2

sin 45°=x/(x√2)=1/√2

Answer Link
MJbrown
MJbrown MJbrown
  • 16-05-2021

Answer:

2√/2

Step-by-step explanation:

Use a 45°–45°–90° triangle to find sin 45°.

Answer Link

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