Answer:
B
Step-by-step explanation:
the opposite angles of the quadrilateral ABDC are supplementary , that is
∠ BDC + 40° = 180° ( subtract 40° from both sides )
∠ BDC = 140°
Answer:
Postulate
Step-by-step explanation:
An axiom or postulate is a statement that is accepted without proof and regarded as fundamental to a subject.
Answer:30%
Step-by-step explanation:
Answer:
Step-by-step explanation:
The Exponential Product rule tells us that...
Therefore, 
.
Therefore,
<h3>
Answer: x = 45</h3>
Work Shown:
x+x+90 = 180 .... all three angles of a triangle add to 180
2x+90 = 180
2x = 180-90
2x = 90
x = 90/2
x = 45
This is a 45-45-90 right triangle. We also consider it an isosceles right triangle because the base angles (45) are equal.
