The actual width of a store room is 280 centimetre. if the scale chosen to make its drawing is 1: 7,then the width of the room in the drawing will be 40 cm
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if a length of 100 m is represented on a map by 1 cm, then the actual distance corresponding to 2 cm is 200 m
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dude youve got no question...

Step-by-step explanation:

if the actual width is 280 and your map shows 40cm, the scale is 1:7, with respect to the map

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )