No. If u divide the 16*20 inch poster by 4 u will get a poster 12*15 so it will not fit in a frame 11 by 17
The slope of the line is -1
And the linear equations is y= -1x-4
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The second angle would be 140⁰. When two angles are supplementary, they add up to 180⁰.
180⁰-40⁰=140⁰
