Patrulatere - recapitulare

Presentation

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Mathematics

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7th - 8th Grade

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Easy

Cărăușu Daniel

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8 Slides • 3 Questions

Patrulatere - recapitulare

Patrulaterul convex

Poligonul cu patru laturi se numește patrulater. Patrulaterele pot fi convexe și concave.

– vârfurile: A, B, C, D
– laturile: [AB], [BC], [CD], [AD]
– unghiurile: ∠A, ∠B, ∠C, ∠D
– diagonalele: [AC], [BD]

Tipuri de patrulatere

Într-un patrulater convex suma măsurilor unghiurilor este de 360 grade.

m(∠A) + m(∠B) + m(∠C) + m(∠D) = 360°

Paralelogramul

Dreptunghiul

Rombul

Pătratul

Trapezul

Multiple Choice

1. Dacă paralelogramul ABCD are măsura unghiului A de 110° atunci măsura unghiului B este de ..........°

110

Multiple Choice

2. Paralelogramul cu un unghi drept se numește:

pătrat

romb

trapez

dreptunghi

Fill in the Blanks

Suma măsurilor unghiurilor unui patrulater convex este

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Patrulatere - recapitulare

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