Step-by-step explanation:
ar of quadilateral
=16×7×7×20
=12080cmsq
Check the picture below.
that's the line of x = 12, just a straight vertical line, notice the green line, that's parallel to it, and the red line, that's perpendicular to it.
let's pick two points for each to get their slopes, hmm say for the green one (5,2) and (5,4)
and for the red one hmmm (3,2) and (7,2)
Two solutions were found :<span> x = 1 x = -2
.......................</span>
Answer:
130
Step-by-step explanation:
since bc and bd equal the same thing, plug in every answer option until you get to 360.
(130 x 2) = 260
plus cd = 100.
260 + 100 = 360.