Question

Construct a quadrilateral XYZW in which XY = 4 cm, YZ = 4.5 cm, XZ = 6 cm, WZ = 4 cm

and XW = 5 cm. Write the steps of construction.​

Answer 1

Answer:

Step-by-step explanation:

1) Draw a rough diagramof quadrilateral XYWZ. 2) Draw a linesegment XY of length 4cm. 3) Take Y as centre draw an arc at 4.5 cm. 4) Take X as centre draw an arc at 6cm.

Answer 2

• Glass, for example, is transparent to all visible light. ... Opaque objects block light from traveling through them. Most of the light is either reflected by the object or absorbed and converted to thermal energy. Materials such as wood, stone, and metals are opaque to visible light.Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.