Area of a Parallelogram: The formula is $A = b \times h$, where $b$ is the base and $h$ is the perpendicular height.

Height of Parallelogram: The height ($h$) is always perpendicular to the base and may lie inside or outside the parallelogram.

Area of a Triangle: The area of a triangle is $A = \frac{1}{2} b \times h$, derived by visualising the triangle as half of a rectangle or parallelogram with the same base and height.

Height of Triangle: Like in a parallelogram, the triangle’s height is perpendicular to the base and can lie inside or outside, extending from the base to the opposite vertex.

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