poptart3 poptart3

29-01-2017
Mathematics

contestada

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 cant 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=

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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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