Answer:
C = 2πr
Step-by-step explanation:
We know that, the perimeter of a figure is equal to the sum of all sides.
A circle having no sides.
The perimeter of a circle = The circumference of the circle
The formula for the circumference of the circle is given by :
C = 2πr
Where
r is the radius of the circle
Hence, this is the required solution.
Step-by-step explanation:
The answer is option b.
Explanation in the pic.
Need any other maths, feel free!!
Answer: the picture has no answer it's invalid but I will try:
X is a 90 degree angle other than that I can't do anything
Step-by-step explanation:
For this case we have the following quadratic equation:
Where:
Its roots will be given by:
The roots are:
Answer:
All but c are correct so the answer is a b and d