KAPEC GEOTASK?
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  • The solved tasks turn into coordinates
  • The chance to follow your progress
  • Along with your schoolmates and friends, go on an adventure, searching for hideouts
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839.1. Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.

Write the answer!

2 rectangular triangles angles are given. Calculate the third angle!
5° and 90°
°
Grade:
7
Subject
Geometry
Theme
Triangle angles sum. Right-angled triangle similarity signs.
Subtheme
Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Conditioned inequality properties.
  2. Algebra: Equation properties.
  3. Algebra: Concept of equation.
  4. Algebra: Subscript concept: base, index, degree
  5. Geometry: Equal triangles, appropriate elementrs, similar properties and signs.
  6. Algebra: Linear equations ax + b = 0, where a, b ∈ Q
  7. Algebra: Linear inequality solution
  8. Algebra: Mutually equal monomials
  9. Algebra: Equivalent equations.
  10. Algebra: Numerical normal form