Question

1. Construct a plain scale of R.F. = 1:10 showing the feet and inches and long enough to

read the distance of 5 feet. Show on it the distance of 4 feet and 10 inches.​

Answer 1

Answer:

Here is the correct answer for this specific problem

Answer 2

Explanation:

Plain scale

• A plain scale consists of a line divided into a suitable

number of equal units. The first unit is subdivided

into smaller parts.

• The zero should be placed at the end of the 1st main

unit.

• From the zero mark, the units should be numbered

to the right and the sub-divisions to the left.

• The units and the subdivisions should be labeled

clearly.

• The R.F. should be mentioned below the scale.

• R.F. = ¼

Construct a scale of 1:4, to show centimeters and long

enough to measure up to 5 decimeters.

• R.F. = ¼

• Length of the scale = R.F.  max. length = ¼  5 dm = 12.5 cm.

• Draw a line 12.5 cm long and divide it into 5 equal divisions, each

representing 1 dm.

• Mark 0 at the end of the first division and 1, 2, 3, and 4 at the end

of each subsequent division to its right.

• Divide the first division into 10 equal sub-divisions, each

representing 1 cm.

• Mark cm to the left of 0 as shown.

Question: Construct a scale of 1:4, to show centimeters and

long enough to measure up to 5 decimeters

• Draw the scale as a rectangle of a small width (about 3 mm)

instead of only a line.

• Draw the division lines showing decimeters throughout the width

of the scale.

• Draw thick and dark horizontal lines in the middle of all

alternate divisions and sub-divisions.

• Below the scale, print DECIMETERS on the right-hand side,

CENTIMETERS on the left-hand side, and R.F. in the middle

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