In a 30 60 90 triangle, the short side = one half the hypotenuse = 4.5
The middle side = short side * sq root of 3
So, the middle side = 4.5 * sq root of 3 (
<span>
<span>
<span>
7.7942</span></span></span>)
Perimeter = 4.5 + 7.7942 + 9
Perimeter =
<span>
<span>
<span>
21.2942
</span>
</span>
</span>
Source:
http://www.1728.org/trig2.htm
The answer is 394
but you need to figure with the distributive property to so your answer would look like this
(5 times 100)+ (5 times 90) + (5 times 8)
You must first attach the problems with your question.