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poptart3 poptart3
  • 29-01-2017
  • Mathematics
Answered

I can't figure out how to find the area of question D. I know I need the height and I know what to do after that but I have no clue how to find the height.

I can t figure out how to find the area of question D. I know I need the height and I know what to do after that but I have no clue how to find the height. class=

Verified Answer :

amyseal
amyseal amyseal
  • 29-01-2017

Imagine there is a right angle triangle formed with the 30 degree angle and the 10 cm side forming the hypotenuse. Now, you can use trigonometry to calculate the height of this triangle, which is the same as the height of this shape.
So sin(30) =  height/10
So, height = 5 cm

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