Complementary angles
Adjacent angles
Correct
One may note, you never quite asked anything per se, ahemm, if you meant simplification.
Answer:
Step-by-step explanation:
This is an equilateral triangle.
The altitude bisects the 60 degree angle, so a=30
b=60 since its an interior angle of the isosceles triangle.
e = 4 since the two triangles formed by the altitude are congruent.
c = 8 since the side length is 4 + 4 = .
f = 4sqrt3 by the properties of 30 60 90 triangles.
<em><u>Answer:</u></em>
<h2><em><u>
A is the answer.</u></em></h2>
Step-by-step explanation:
The commutative property changes the numbers in the equation they give. This is very different from identity, distibutive(needs parenthesis), or associative properties.