D. Angel 6 because vertical is just asking what angle is on the other side of angle 3
Given that original lenght of the board before cut 
meter
Lenght of the board that is left after cutting from the original piece by Hernan 
meter
Now we have to find the lenght of the piece which is cut.
To find that we just need to subtract smaller piece from larger piece
Required Length 
meter
Required Length 
meter
Required Length
meter
reduce the fraction
Required Length 
meter
Hence final answer is 
meter.
Answer:
a
Step-by-step explanation:
Answer:
So each interior angle measurement of the regular triangle is 60 degrees.
Step-by-step explanation:
If the triangle is regular, this means all the side measurements are congruent to each other and that all the angle measurements are congruent to each other.
If the sum of the angles in a triangle is 180 degrees and you know they are each the same then you could either solve x+x+x=180 or know we are just dealings with an equiangular triangle in which all angles have measurement 60 degrees.
If need more convincing, let's actually solve:
x+x+x=180
3x=180
x=180/3
x=60
So each interior angle measurement of the regular triangle is 60 degrees.
