If the base stays the same, the area is also doubled.
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The exact same as the original triangle.
If the sides of a triangle are doubled then the area becomes quadrupled (four times as large).
When you change the linear size it changes the areas by the square and the volume of the cube.
the area of a triangle is half of the base times the height the area of a triangle is half of the base times the height
As area_of_parallelogram = base x height if they are both doubled then: new_area = (2 x base) x (2 x height) = 4 x (base x height) = 4 x area_of_parallelogram Thus, if the base and height of a parallelogram are [both] doubled, the area is quadrupled.