Answer:
A,C,and E!
Step-by-step explanation:
Obtuse=>90
Equilateral triangles do not have right angles, because then the angles wouldn't be equal!
Both acute and Equilateral have angles smaller than 90!
Hope this helps, and don't forget to follow!
Start by calling the unknown amount 'x'. We can then set up a relationship to represent the question:
or
and then solve for x, by dividing both sides of our equation by 0.3
213 is 30% of 710
To check:
Where the line segment A starts is home
Answer: 
Step-by-step explanation:
It's a complementary angle, so just solve for x and subtract the CBD from 90,
First, we have to solve for x.
2x + 14 + x + 7 = 90
Combine like terms
3x + 21 = 90
Balance, subtract 21 from each side.
3x = 69
Divide 3 from each side
x = 23.
So know that we know x is 23, we can go about it 2 ways, subtracting the other angle with 90 or just substituting the variable, I'd just substitute the variable for it so just do 23 + 7. That equals 30, angle ABC = 30.
