3. What method is used to denote the following set? A={2,3,5,7,11} a) Rule method
b) Listing method
c) Roster Method
d) borc
4. A diagram that makes use of geometric shapes to show relationships between sets.
a) Venn Diagram
b) Flow Chart
c) Unknown
d) Cannot be​

listing method

Step-by-step explanation:

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according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: