Step-by-step explanation:
a rectangle has two pairs of equally long sides and each of the 4 angles between the sides is 90 degrees.
given that ABCDEF is a regular hexagon, it means that all its sides are equally long, and therefore also all internal angles are the same size.
that means for ACDF that the sides DC and FA are equally long.
DEF and ABC are congruent triangles, as the sides DE = BC, EF = AB, and the angle E is congruent to angle B.
based on the SAS criteria this confirms that DF is congruent to AC.
the angles ACB, CAB, EDF and EFD have to be all the same, and therefore also the angles FDC, DCA, CAF and DFA.
so, all 4 angles of the parallelogram ACDF are the same, and the sum of all these angles has to be 360 degrees, we have
360 = 4×angle
angle = 90 degree.
so, all angles are 90 degrees and we have two pairs of equally long sides : this process that ACDF us a rectangle
your answer would be 254 I just did it and I got it right ✨
Answer:
Step-by-step explanation:
Using order of operations, the first thing to be calculated would be 
.
That would turn our equation into this:
You can then calculate left-to-right as usual to get the answer 10.
square root it and divide by pi. square root of 529 is 23. then divided by pi (3.14) is 7.32.
3/10
As you know the answer already I don't think you need any further explanation :)
