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Calculating the area of a leaning triangle
Calculating Area
Calculating Area
Draw a rectangle (or square) around the triangle
The area of this rectangle = 1 squareThe triangle is ½ of the rectangle so its area = ½ square
Area of triangle = ½ square
Calculating Area
What about this triangle?
Calculating Area
Draw a rectangle around the triangle
The area of this rectangle = 2 squares
Calculating Area
The area of the triangle can be calculated by taking away the area of the 2 white triangles
Calculating Area
The area of the first white triangle = ½ square
Calculating Area
The area of the second white triangle is ½ of the surrounding rectangle
Calculating Area
The area of the surrounding rectangle = 2 squaresSo the area of the second white triangle = 1 square
Calculating Area
So the area of the triangle = 2 - ½ - 1 = ½ square
Area of triangle = ½ square
Calculating Area
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