Question 2

Susan is making a jump to ride her bike over. She uses a 1m plank of wood to make the jump, and raises the end 50 cm off the ground with a second piece of wood. How far along the ground from the end of the plank that touches the ground is the second piece of wood?

Formula

Picture

Finding "B"

FINDING B
FINDING B
FINDING B
FINDING B
FINDING B
FINDING B
FINDING B


SINCE ADDING SIDE A AND SIDE B GIVES YOU SIDE C, TAKE AWAY SIDE A FROM SIDE C TO GET SIDE B

OR

C² - A² = B²

WITH THAT YOU CAN THIS:

C² - A² = B²...FORMULA
10² - 6² = B²...REPLACE A & C
(10X10) - (6X6) = B²...SQUARE A & C
100 - 36 = B²
64 = B²...SUBTRACT

YOU ARE NOT DONE YET. YOU FIVE B², YOU ARE LOOKING FOR B. YOU STILL HAVE TO FIND THE SQUARE ROOT OF YOUR ANSWER TO FIND B.

THE SQUARE ROOT OF 64 IS 8 (8X8=64).

B = 8

Scribe post

Finding C

One of the most famous mathematicians who has ever lived, Pythagoras, a Greek scholar who lived way back in the 6th century B.C. (back when Bob Dole was learning geometry), came up with one of the most famous theorems ever, the Pythagorean Theorem. It says - in a right triangle, the square of the measure of the hypotenuse equals the sum of the squares of the measures of the two legs. This theorem is normally represented by the following equation: a2 + b2 = c2, where c represents the hypotenuse.

With this theorem, if you are given the measures of two sides of a triangle, you can easily find the measure of the other side.




Example

1. Problem: Find the value of c.

Accompanying Figure

Solution: a2 + b2 = c2 Write the Pythagorean
Theorem and then plug in any
given information.

52 + 122 = c2 The information that was
given in the figure was
plugged in.


169 = c2 Solve for c By finding the square root of the number
c = 13







2. Problem: A ladder 12 meters long leans
against a building. It rests on
the wall at a point 10 meters
above the ground. Find the angle
the ladder makes with the ground.

Solution: Make sure you know what is being
asked. Then use the given
information to draw and label a
figure.




a2+b2=c
12,2+10,2=c
c2=144+100
c=244
square root of 244 is 15.62
c=15.62

APRILP'S BOB

1.) Did you like the unproject?
Yes.

2.) Did the unproject make you work harder than usually would?
Yes.

3.) What did you like best about the unproject?
Making the actual quiz with april.

4.) What would you change about the next unproject?
I would make sure it's done on time.

5.) Did the unproject make you learn more because you were doing a different type of project?
Yes.

APRILP'S BOB

1.) Did you like the unproject?
Yes.

2.) Did the unproject make you work harder than usually would?
Yes.

3.) What did you like best about the unproject?
Making the actual quiz with april.

4.) What would you change about the next unproject?
I would make sure it's done on time.

5.) Did the unproject make you learn more because you were doing a different type of project?
Yes.

BOB

This unit was pretty easy. In the beginning of the unit I was lost, but now I understand fractions, completely. I need to do better in the quizzes. I work during class and usually complete my homework on time. I worked hard on the unproject with my partner but it was a few days late.

Required Information:
1. Did you like the unproject.
It was okay.
2. Did the unproject make you work harder than you usually would?
No because this was on done on the computer and it's much easier.
3. What did you like best about the unproject?
Creating questions for the quiz.
4. What would you change about the next unproject?
Nothing.
5. Did the unproject make you learn more because you were doing a different type of project?
Yes, I learned how to use tools on the internet such as creating slideshows and using wikispace.

B.O.B

I think i did really good on this unit about fractions. I found it easy to learn how to add, subtract, multiply and divide correctly. I completed all my purple sheets, big sheet and my unproject. I think i will get a good mark when take the test.

Did you like the unproject?
I liked the unproject because it prepares me and others for the test.

Did the unproject make you work harder than usually do?
I tried the best i could like on most of my projects.

What did you like about the unproject?
The best part was when i was done because i was happy =)

What would you change about the unproject?
nothing i guess

Did the unproject make you learn more because you were doing a different kind of project?
I learned to add and subtract a bit easier but thats all.