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Lekcja 4 A

DLA LEKTORA

SJO PW - Język angielski ogólnotechniczny, Poziom B2

Opracowanie: I. Zamecznik, M. Witczak, H. Maniecka, A. Hilgier, B.Przybyła, E. Fronc

ABC is a/ ąn acule/obtuse/rieht triangle because one of the angles is an obtuse/acute angle.

In a right triangle, the side opposite the right angle is called the hypotenuse and the other two sides are called the Iegs. If c represents the length of the hypotenuse and if a and b represent the length of the legs, thcn c²=a²+ b² (which reads: c squared equals a squarcd plus b squared). This is Pythagorcan Theorem, which States that in any right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs.

Match the name to the figurę: sąuare, hexagon, pentagon

O

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o

These are examples of sonie regular polygons. A polygon which has four sides only is called a quadrilateral. The rectangle, the trapezium and the rhombus are examples of quadrilaterals.

Task 5.    Decide if the following sentences are true or false:

1.    A rectangle is a quadrilateral that has four equal angles.    T

2.    A square can be described as a rectangle that has two adjacent sides of equal length.    T

3.    Ali quadrilatcrals are polygons.    T

4.    Ali polygons are quadrilaterals.    F

5.    If each angle of a rhombus is 90 degrees, it is a square.    T

Geometrie Figures - Three-Dimensional Geometry

3-D geometry' is the geometry of three-dimensional space. It is called three dimcnsional. or 3-D, bccause there are three dimensions: width, depth and height. There are two main types of solids (3-D shapes): polyhedra and non-polyhedra, (singular - polyhedron, plural -polyhedra/polyhedrons). Polyhedra have fiat faces.

Task 6.    Match the name to the solid: cube, cuboid, pyramid, prism, cone, cylinder, sphere, torus (pl. tori)

Weights and Measures

Task 7.    Weight

1 gram (g) = 0.001 kilogram (kg)

The weights in the table have been mixed. Match the metric values to their GB&US equivalents:

UK&US	Metric
1 ounce (oz)	28.350 grams
1 pound (lb) = 16 ounces (oz)	0.454 kilograms (kg)
1 stone = 14 pounds (lb)	6.35036 kilograms
1 US Short ton = 2.000 pounds (lb)	907.184 kg
1 UK Long ton = 2.240 pounds (lb)	1.016.04 kilograms
2,204.6 pounds (lb)	1 tonne (t) = 1,000 kg

tali / high - height

Task 8.    Length, area, volume, liąuid: capacity/volume

long - length deep - depth wide - width heavy - weight