Because in an equilateral triangle all angles should measure 60 degrees otherwise all sides would not be equal.
R= 18
d=r(2)
36=r(2)
36/2=r(2)/2
18=r
The answer is the
The shape has 6 equal Square face
Because each side had 6
That on of the answer the next the shape has 6 vertices
Also the shape is soild
10 1/4 / 151 3/16 = 4/59
Have a great day :)
Answer:
29°: Acute 90°: Right 61°: Acute
Step-by-step explanation:
If an angle is less than 90 degrees, it is acute. If it is greater than 90 degrees, it is obtuse. If it is exactly 90 degrees, it is right.
