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Angles and Shapes

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Easy Math, CLIL

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EC4Cs 2022

Vocabulary

triangle - триъгълник
square - квадрат
rectangle - правоъгълник
circle - кръг, окръжност
oval - елипса
angle - ъгъл
acute - остър
right - прав ъгъл
obtuse - тъп ъгъл
straight - изправен ъгъл
acute angle - is less than 90°
right angle - is 90° exactly
obtuse angle - is greater than 90° but less than 180°
straight angle - is 180° exactly
scalene triangle - разностранен триъгълник
urface.

scalene triangle - разностранен- No equal sides. No equal angles.
equilateral triangle - равностранен триъгълник - Three equal sides. Three equal angles, always 60°.
isosceles triangle - равнобедрен триъгълник - Two equal sides. Two equal angles
acute triangle - остроъгълен триъгълник - All angles are less than 90°.
right triangle - правоъгълен триъгълник - Has a right angle (90°).
obtuse triangle - тъпоъгълен триъгълник -
Has an angle more than 90°.
rectangle - правоъгълник - A four-sided flat shape where every angle is a right angle (90°).
perimeter - The distance around a figure
area - Length x Width - The number of square units required to cover a surface.

Quizlet flashcards

Shapes and angles

Learning materials

Angles - Acute, Obtuse, Straight and Right

Triangles - Equilateral, Isosceles and Scalene

Interactive Triangles

Rectangle, square, circle, oval

Rectangle

Square Definition (Illustrated Mathematics Dictionary)

Ellipse

Circle

Symmetry Artist

Acute Angle

is less than 90°