Question

the nearest metre, the distance of the buoy from the foot of the cliff. [ICSE 2005]
48. From the top of a hill, the angles of depression of two consecutive kilometer stones, due
east are found to be 30° and 40° respectively. Find the distance of the two stones from the
foot of the hill.
[ICSE 2007]​

Answer 1

Answer:

History is the study of the past. Events occurring before the invention of writing systems are considered prehistory. "History" is an umbrella term that relates to past events as well as the memory, discovery, collection, organization, presentation, and interpretation of information about these events.

Step-by-step explanation:

ɪ ʜᴏᴘᴇ ɪᴛ ɪꜱ ʜᴇʟᴘꜰᴜʟ ꜰᴏʀ ʏᴏᴜ