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1522.1. Parallelogram, elements. Properties and signs.

Write the correct answer!

With number 1 check properties, with 2 - signs, with 3 - definitions!
Diamonds diagonales divides diamond in two equal triangles
If rectangles diagonales is perpendicular and when crossed divides o
Parallelogram is a diamond if its adjacent edges are equal
If all rectangles edges are equal then it is a diamond
Diamonds edge angles sum are 180 degrees
Grade:
8
Subject
Geometry
Theme
Diamond
Subtheme
Diamond, it`s properties and signs.

Solve tasks to find hidden Geo point coordinates

  1. Chemistry: Acids and bases. Indicators.
  2. Algebra: Quadratic equation discriminant
  3. Physics: Substances structure.
  4. Algebra: Quadratic equation discriminant
  5. Geometry: Parallelogram, elements. Properties and signs.
  6. Algebra: Square root properties
  7. Algebra: Parabola.
  8. Algebra: Transformation of algebraic expressions.
  9. Physics: Optical phenomena in nature.
  10. Chemistry: Acids and bases. Indicators.