Give me some advice not on anything in particular just advice

In the ninteenth century,why was it more nessesary for art to provide accyrate represemtations of life and objects

Identify dr. linda nochlin’s contribution to art history. dr. linda nochlin contributed to the field of art history by researching and promoting the role of artists.

Achair of height 1 m is placed 1 m in front of a plane mirror. a girl is standing 3 m behind the chairas shown. find the minimum length of the plane mirror in order that she can see the whole imageof the chair.a. 0.50 mb. 0.75 mc. 0.80 md. 1.00 m