Answer:
Has to be the first one....
Step-by-step explanation:
An equilateral triangle has 3 equal sides and angles. Each angle is
60 degrees.
Answer:
3 Degrees
Step-by-step explanation:
2x+4=10
2x=6
x=3
2(3)+4= 10
(plus, on parallelograms like that, parallel sides are equal to each other)