8. What is the maximum number of
right angles a triangle can have?

One.

Step-by-step explanation:

A triangle can only have one right angle because all three angles of a triangle MUST add up to be 180 degrees. That means if there are two right angles then the answer would automatically be over 180.

Example:

    90+90+1=181

Therefore, a triangle can only have one right angle

step-by-step explanation:

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answer is c

step-by-step explanation:

81/12=324/x

x=48