Step-by-step explanation:
step 1. the area of a circle is A. A = (pi)r^2.
step 2. if the diameter is 8 cm then the radius is 4 cm.
step 3. A = (pi)4^2
step 4. A = 16(pi) = 50.24 cm.
<span>Answer: Option (C) Never
Explanation:
Irrational numbers are the numbers that CANNOT be written as the fraction of integers. On the other hand, integers can ALWAYS be written as a fraction.
For Example:
10 (an integer) can be written in a fraction forms as: 10/1, 100/10 etc.
Hence all integers are NEVER irrational numbers.
Information:
Few might say that although Pi (3.141592653...) is an irrational number, but we can write it as 22/7. 22/7 is mere approximation we use for the ease of calculations, NOT an accurate fraction for Pi.</span>
Yes it is absolutely correct. Good job!!
**You used trig :)
