1. In circle O, diameter AB has been drawn, Locate point C anywhere between A and B (on either side of the
1 answer:
Answer:
Right Triangle.
Step-by-step explanation:
Given AB is a diameter of a circle O.
Point C is located on the circle's circumference as shown in the attached diagram.
The angle formed at C is the angle subtended by the diameter AB. Therefore, the angle at C is a Right Angle by the theorem stated below.
Theorem: Angle subtended by the diameter is a right angle.
This makes triangle ACB a Right Triangle.
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Answer:
C
Step-by-step explanation:
a=r^2
To find the radius, divide the diameter by 2
r=d/2
r=10/2
r=5
a=r^2
a=5^2
a=25
So, choice C is correct
Hope this helps! :)