Question

prove that A=4i+3j+k and B=12i+9j+3k are parallel to each other​

Answer 1

Answer:

length 12 m and breadth 10 m.

b) 2.5 cm.

Step-by-step explanation:

The ratio of scale of drawing to the floor plan of the house is 1:200.

Hence, the actual lengths in the house are reduced by 200 times in the drawing.

a) If a room in the drawing is measured by 6 cm × 5 cm, then the actual dimension of the room will be (6*200) cm× (5*200) cm

or, 1200 cm× 1000 cm

or, 12 m× 10 m

Therefore, the actual length and breadth of the room are 12 meters and 10 meters respectively. (Answer)

b) If the actual length is 5 meters (or,500 cm.) then it's reduced dimension in the drawing will be 500/200 =2.5 cm. (Answer)

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