Answer:
Step-by-step explanation:

Answer:
HAVE A NICE DAY :)))
Step-by-step explanation:
thank
Answer Is Option a)4.5 sq.units
Given vertices are X(2,1),Y(5,4) and Z(5,1)
Answer is given above in the image
If you have any doubts see the image or ask in comments box <em>.</em>
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<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>
The answer is 21 + 4x.
You find this answer by adding up all the sides.
9+12+4x= 21+4x ... you don't add 4x because it has a variable that we do not know of the value.