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Chapter 1: Q46. (page 16)

a. On AB鈫�, how many points are there whose distance from point A is 3 cm?

b. On AB鈫�, how many points are there whose distance from point A is 3 cm?

Short Answer

Expert verified

a. 1 point.

b. 2 point.

Step by step solution

01

a. Step 1- Check the statement.

If rayAB鈫� goes forever in the right direction it can contain points on the right side of A.

02

a. Step 2- Apply the concept of ray.

A ray starts with a point and goes on forever in one direction.

03

a. Step 3- Step description.

From the statement it can be concluded that there can be only one point whose distance from point Ais 3 cm, on the right side A.

Hence, the answer is 1 point.

04

b. Step 1- Check the statement.

If lineAB鈫� goes forever in the both right and left directions and it can contain points only on the right or left side of A.

05

b. Step 2- Apply the concept of line.

A line extends forever in both the directions.

06

b. Step 3- Step description.

From the statement it can be concluded that there can be two points whose distance from point Ais 3 cm, on the right side Aand other on left of A.

Hence, the number of points is 2.

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