Use the image to answer the question.
An illustration shows a 10 by 10 grid. A non-right triangle is enclosed within the grid. The first vertex at the top of row 2 and the right of column 8. The second vertex is at the top of row 4 and the right of column 1. The third vertex is at the bottom of row 10 and the right of column 8.
What is the area of the non-right triangle? The base and height are found by counting the squares.
(1 point)
The area is
square units.
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The base of the triangle is 7 squares wide and the height is 6 squares tall.
Therefore, the area of the non-right triangle is (7 * 6) / 2 = 21 square units.