Answer:
<h3><1 = <2+< 3.</h3>
Step-by-step explanation:
Given triangle WXY and <1 is an exterior angle.
We need to prove <1 is greater than <2.
First statement is:
Triangle WXY and <1 is an exterior angle.
Reason : Given
<em>Note: An exterior angle of a triangle is the sum of two angles side the triangle those don't makes the linear pair with exterior angle.</em>
We can see that <2 and < 3 are the angles of triangle those are not making a linear pair.
Therefore, <1 = <2+< 3.
So, the second statement should be first option <1 = <2+< 3.
Answer:
20！
Step-by-step explanation:
(x-4)(x-4)
5(x^2-8x+16)=60
5x^2-40x+80=60
5x^2-40x+20=0
5(x^2-8x+4)
something like this
