Question

Using Desmos.com or the Pythagorean Theorem find the distance between points A and B rounded to the nearest tenth.

Answer 1

Answer:

B. 8.6

Step-by-step explanation:

Given:

Draw a right angled triangle ABC as as shown below.

From the triangle $\Delta ABC$,

Calculate the number of units from A to C and from C to B, we get

AC = 7 units and BC = 5 units.

Now using Pythagorean Theorem,

$AB^{2}=BC^{2}+AC^{2}\\AB^{2}=(7)^{2}+(5)^{2}\\AB^{2}=49+25\\AB^{2}=74$

Taking square root on both sides, we get

$\sqrt{AB^{2}}=\sqrt{74}\\AB=8.6$

Therefore, the distance between points A and B rounded to the nearest tenth is 8.6 units.