Question

4 Construct overline AB of length 3.8 cm. Construct MN such that the length of MN is twice that of AB . Verify by measurement.​

Answer 1

Answer:

"With the help of a ruler and a compass, we can draw a line segment by following steps:

Steps of construction:

Step 1: Draw a line l of suitable length and mark a point P on it.

Given AB of length 3.9 cm, construct PQ such that the length of PQ is twice that of AB. Verify by measurement.

Step 2: Draw the given line segment AB of 3.9 cm.

Given AB of length 3.9 cm, construct PQ such that the length of PQ is twice that of AB. Verify by measurement.

Step.3: Open the compasses up to the length of AB, from point P draw an arc to cut the line at X.

Step 4: Similarly, place the pointer of a compass on point X, draw an arc that cuts line l at point Q.

PQ is the required line segment.

Given AB of length 3.9 cm, construct PQ such that the length of PQ is twice that of AB. Verify by measurement

With the help of a ruler, we can measure the length of PQ. It will measure 7.8 cm. "

Answer 2

Answer:

Step 1 : Draw a line segment AB  = 3.8 cm

Step 2 : Draw a Ray MX  

Step 3: Take compass Width = AB

Step 4 : using compass taking M as center take a point P on ray MX

Step 5 : keeping same width now taking P as center  take a point Q on PX

Step 6 : keeping same width now taking Q as center  take a point N on PX

line Segment MN = 3 * AB

Using rule MN found to be 11.4 cm

Step-by-step explanation: