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 is at the top of row 2 and the right of column 6. The second vertex is at the top of row 8 and the right of column 1. The third vertex is at the top of row 10 and right of column 10.
What is the area of the non-right triangle? The base and height are found by counting the squares.
1 answer
The base of the triangle is 9 squares (from column 1 to column 10 in row 10). The height of the triangle is 8 squares (from row 2 to row 8). Therefore, the area of the non-right triangle is (1/2) x base x height = (1/2) x 9 x 8 = 36 square units.
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