Answer:
1. isosceles because two of the sides are equal
2. right because there is a right angle
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that
Area of a circle 
Circumference of the circle 
Let us re-write the equation of area of circle:


Multiplying and dividing with 2:

Hence, <em>A</em> in terms of <em>C</em> can be represented as:

The first one is the answer