Answer:
Root( c square -9)
Step-by-step explanation:
The answer u have is the answer for a^2
4^0 is 1 because any number to the zero power is one so 1*5=5
Circumference of circle = π × Diameter
= π × 18 cm
= 56.54867 or 56.54 to 1 dp
If c lies on diameter the angle in a semicircle.therefore another angle is 90.then by angle sum property it’s 22 degree