astr0sisters
astr0sisters astr0sisters
  • 06-03-2021
  • Mathematics
contestada

HELP PLS! Worth 20 points!!
What is the hypotenuse and the shorter leg of a 30-60-90 triangle, if the longer leg is 12?

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9Firefoxes
9Firefoxes 9Firefoxes
  • 06-03-2021
Let the hypotenuse be y and the shorter leg be x
sin30°= SHORTER LEG/HYPOTENUSE
1/2=x/y
2x=y..........(1)

cos30°=LONGER LEG/HYPOTENUSE
Root3/2=12/y
y=8 Root 3 units

Substituting y in equation 1:
2x=8 Root 3
x= 4 Root 3 units

Thus, the value of the hypotenuse is 8 Root 3 units, and the value of the shorter leg is 4 Root 3 units.
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