PLEASE ANSWER THESE QUESTIONS
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PLEASE SOLVE BOTH QUESTIONS
Answers
1. To describe the position of a table lamp placed on the table, let us consider the table lamp as P and the table as a plane. Now choose two perpendicular edge of the table as the axes OX and OY. Measure the perpendicular distance ‘a’ cm of the lamp from OY. Measure the perpendicular distance ‘b’ cm of P (lamp) from OX.
Thus, the position of the table lamp P is described by the ordered pair (a, b).
how many cross streets can be referred to as (4, 3)?
(ii) how many cross streets can be referred to as (3, 4)?
Ans. (i) A unique cross street as shown by the point A(4, 3).
(ii) A unique cross street as shown by the point B(3, 4).
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Answer :
1. Let us consider the lamp as a point A and table as a plane.
Take any two perpendicular edges of the table. Measure the distance of the lamp from the longer edge AD (denoting y-axis), let it be 25 cm.
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Again, measure the distance of the lamp from the shorter edge AB (denoting x-axis);
let it be 15 cm. Therefore, the position of the lamp can be written as (15, 25).