The area of a triangle is calculated using 1/2b*h, where b = the base and h = the height
The area of a rhombus is calculated using pq/2, where p and q equal the length of the diagonals from opposite points.
<h2><em>ts = 4x - 7
</em></h2><h2><em>
</em></h2><h2><em>sv = 5x - 15
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</em></h2><h2><em>If s is the midpoint of ts and sv, then ts = sv, so
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</em></h2><h2><em>4x - 7 = 5x - 15
</em></h2><h2><em>
</em></h2><h2><em>5x - 4x = 15 - 7
</em></h2><h2><em>
</em></h2><h2><em>x = 8
</em></h2><h2><em>
</em></h2><h2><u><em>Not 100% sure </em></u></h2>
