Supplementary means they are equal to 180 so combine them and set it equal to 180.
7x - 2 = 180
Add 2
7x = 182
Divide by 7
x = 26
The side would measure 6. What I did to come to this conclusion was add 7 and 9 together to get 16 then subtract 16 from 22 equaling 6.
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I believe its 147 in ² :))))))
2(10*3)=60
2(1/2*10*8.7)=87
60+87=147
38 14+8+16 To get perimeter add all sides
Answer:
its g
Step-by-step explanation:
