Step-by-step explanation:
the correct answer is c
Answer:
right
Step-by-step explanation:
The box in the lower corner means that the angle is equal to 90 degrees, which means the angle is a right angle
The triangle is a right triangle
Answer:
constant.
Step-by-step explanation:
like natural constants like pi or e.
40,000 cause 4x10 is forty and then add the zeros
