The correct answer is:
17.5 square units
To find the area of the triangle, you can divide it into two right triangles by drawing a vertical line from the top vertex to the base. Then you can find the area of each right triangle and add them together. The height of each right triangle is 7 units and the base of one right triangle is 5 units and the base of the other right triangle is 5 units. Therefore, the area of each right triangle is (1/2)(7)(5) = 17.5 square units. Adding the two areas together gives a total of 35 square units.
Area of Non-right Triangles Quick Check
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Question
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 4. The second vertex is at the top of row 9 and the right of column 4. The third vertex is at the top of row 6 and the right of column 9.
Find the area of the non-right triangle. The base and height are found by counting the squares.
(1 point)
Responses
35 square units
35 square units
32.5 square units
32.5 square units
17.5 square units
17.5 square units
65 square units
1 answer
1 answer