This is just one example of a point. You should try to find others.

Problem 6

My hint: Brett and Jordan arrive at the intersection point exactly one second apart. Guess and check to find out the times.

Problem 8

An application of the angle bisector theorem. Side BC is divided into two parts in a 4:6 ratio, or 4 parts to 6 parts. In other words, side BC is divided into 10 parts, with 4 parts being assigned to BD and 6 parts being assigned to DC.

Problem 9

Problem 10

Problem 11

Problem 12

3, 4, 5, 6, 8, 9, 10, 12,... and the other divisors of 360.

Page 52

Problem 1

The only question this begs is how fast must Alex drive in the desert to make the driving thro]ugh the desert the shortest time path?
You should try to answer this.

Problem 2

Great review of special right triangles, medians, and centroid!

Problem 4

A great application of special right triangles and similar triangles

Problem 9

Problem 8

Problem 12

There was an applet illustrating this a couple of pages back. Look for it if you want to see it.

## Table of Contents

## Page 51

## Problem 1

## Problem 2

## Problem 3

(a) [x-2, y-5, z+6] (b) [-3, 4-2t, -3+t]

## Problem 4

This is just one example of a point. You should try to find others.

## Problem 6

My hint: Brett and Jordan arrive at the intersection point exactly one second apart. Guess and check to find out the times.

## Problem 8

An application of the angle bisector theorem. Side BC is divided into two parts in a 4:6 ratio, or 4 parts to 6 parts. In other words, side BC is divided into 10 parts, with 4 parts being assigned to BD and 6 parts being assigned to DC.

## Problem 9

## Problem 10

## Problem 11

## Problem 12

3, 4, 5, 6, 8, 9, 10, 12,... and the other divisors of 360.

## Page 52

## Problem 1

The only question this begs is how fast must Alex drive in the desert to make the driving thro]ugh the desert the shortest time path?

You should try to answer this.

## Problem 2

Great review of special right triangles, medians, and centroid!

## Problem 4

A great application of special right triangles and similar triangles

## Problem 9

## Problem 8

## Problem 12

There was an applet illustrating this a couple of pages back. Look for it if you want to see it.