Will give medal.

In the figure below, triangle ABC is an equilateral triangle, and quadrilateral DEFB is a square.

https://app107.studyisland.com/pics/154646num31CAB.png

What is m(angle)ABD?

Question

Will give medal.

In the figure below, triangle ABC is an equilateral triangle, and quadrilateral DEFB is a square.

https://app107.studyisland.com/pics/154646num31CAB.png

What is m(angle)ABD?

anonymous · Answer

approximatly 172 degrees

anonymous · Answer

It can't be 172.  It's an acute angle.

anonymous · Answer

I think it's 45.  One of the angles is 90 (as the square proves) and the other is 45 (from the triangle).  90 + 45 = 135, and 180 - 135 = 45.

anonymous · Answer

Actually, I did that math wrong.  It's not 45; it's 60.  So the answer is 30 degrees.