Question

In the adjoining figure area of triangle ABC is equal to the area of parallelogram ABCD if altitude EF is equal to 16 cm long find the length of the altitude of the paragraph

Answer 1

Answer:

Many metals react with oxygen to form metal oxides. Potassium and sodium are soft metal which are easily cut exposing a shiny surface which changes to dull rapidly. The change from shiny to dull is called tarnishing. Potassium burns with a lilac flame when heated in air.