Answer:
Step-by-step explanation:
x+165 = 180
x = 180 - 165
x = 15
Answer:
<h3><u /></h3>
<u>Trigonometric identities</u>
<u />

Therefore, using the <u>identities</u>, the given expression can be <em>simplified</em> as follows:

Answer:
The length of its side is 30 cm
Step-by-step explanation:
<h3><u>Given</u><u>:</u></h3>
An equilateral triangle with the perimeter of 90cm.
In a Equilateral Triangle all sides are equal
i.e., all 3 sides are equal
Now,
90/3 = 30 cm
Thus, The length of its side is 30 cm
<u>-TheUnknownScientist</u><u> 72</u>