Question

The map shows the distance in air miles from City A to both City B and City C.
City B
U miles
79 miles
Cry C
Which of the following is a possible side length for the distance between City C and City B
O 39 miles
O 40 miles
0 41 miles
42 miles
1 2​

Answer 1

Answer:

Let's assume the distance between A and C is 'd'. Then the answer must be outside 7<d<21.

Explanation:

Since the position of the points were not properly defined, let's assume the two cases.

Case 1 : C is closest from A

C———A———B

We know that AB is 7km and BC is 14km, then AC must be 14–7 is 7km.

Case 2 : C is farthest from A

A———B———C

We know that AB is 7km and BC is 14km, then AC must be 14+7 is 21km.

At any other position, the value of AC falls between 7 and 21.

So, your answer must be anything that is outside.

Hope it helps