AreaArea is the space within the perimeter of a two-dimensional figure.
BaseThe side of a triangle parallel with the bottom edge of the paper or screen is commonly called the base. The base of an isosceles triangle is the non-congruent side in the triangle.
HeightThe height of a triangle is the perpendicular distance from the base of the triangle to the opposite vertex of the triangle.
PerimeterPerimeter is the distance around a two-dimensional figure.
PerpendicularPerpendicular lines are lines that intersect at a 90^{\circ} angle. The product of the slopes of two perpendicular lines is -1.
PolygonA polygon is a simple closed figure with at least three straight sides.
Right AngleA right angle is an angle equal to 90 degrees.
Right TriangleA right triangle is a triangle with one 90 degree angle.
TriangleA triangle is a polygon with three sides and three angles.
Area of a ParallelogramThe area of a parallelogram is equal to the base multiplied by the height: A = bh. The height of a parallelogram is always perpendicular to the base (the sides are not the height).
Area of a TriangleThe area of a triangle is half the area of a parallelogram. Hence the formula: A = \frac{1}{2}bh \text{ or } A = \frac{bh}{2} .
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Answer:
TermDefinition
AreaArea is the space within the perimeter of a two-dimensional figure.
BaseThe side of a triangle parallel with the bottom edge of the paper or screen is commonly called the base. The base of an isosceles triangle is the non-congruent side in the triangle.
HeightThe height of a triangle is the perpendicular distance from the base of the triangle to the opposite vertex of the triangle.
PerimeterPerimeter is the distance around a two-dimensional figure.
PerpendicularPerpendicular lines are lines that intersect at a 90^{\circ} angle. The product of the slopes of two perpendicular lines is -1.
PolygonA polygon is a simple closed figure with at least three straight sides.
Right AngleA right angle is an angle equal to 90 degrees.
Right TriangleA right triangle is a triangle with one 90 degree angle.
TriangleA triangle is a polygon with three sides and three angles.
Area of a ParallelogramThe area of a parallelogram is equal to the base multiplied by the height: A = bh. The height of a parallelogram is always perpendicular to the base (the sides are not the height).
Area of a TriangleThe area of a triangle is half the area of a parallelogram. Hence the formula: A = \frac{1}{2}bh \text{ or } A = \frac{bh}{2} .