Distance Properties in some Geometrical Figures

We will discuss here about the distance properties in some geometrical figures.

1. A triangle ABC is an isosceles triangle if AB = AC or AB = BC or AC = BC.

2. A triangle ABC is an equilateral triangle if AB = BC = CA.

3. A triangle ABC is a right-angled triangle if the sum of the squares of two sides is equal to the square of the third side, i.e.,

AB$^{2}$ = BC$^{2}$ + CA$^{2}$ or BC$^{2}$ = CA$^{2}$ + AB$^{2}$ or AC$^{2}$ = AB$^{2}$ + BC$^{2}$

4. The distance of any point on a circle from the centre = radius of the circle.

Properties of various types of quadrilaterals

5. A quadrilateral is a parallelogram if its opposite sides are equal. A quadrilateral ABCD is a parallelogram if AB = CD and AD = BC.

6. A quadrilateral is a parallelogram but not a rectangle if its opposite sides are equal and the diagonals are not equal.if its opposite sides are equal.

7. A quadrilateral is a rectangle if its opposite sides are equal and the diagonals are equal. A quadrilateral ABCD is a rectangle if ABCD is a parallelogram and diagonal AC = Diagonal BD.

8. A quadrilateral ABCD is a rhombus if AB = BC = CD = DA.

9. A quadrilateral is a rhombus but not a square if all its sides are equal and the diagonals are not equal.

10. A quadrilateral is a square if all its sides are equal and the diagonals are equal. A quadrilateral ABCD is a square if ABCD is a rhombus and diagonal AC = Diagonal BD.

● Distance and Section Formulae

• Distance Formula
• Distance Properties in some Geometrical Figures
• Conditions of Collinearity of Three Points
• Problems on Distance Formula
• Distance of a Point from the Origin
• Distance Formula in Geometry
• Section Formula
• Midpoint Formula
• Centroid of a Triangle
• Worksheet on Distance Formula
• Worksheet on Collinearity of Three Points
• Worksheet on Finding the Centroid of a Triangle
• Worksheet on Section Formula

10th Grade Math

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