5.7­5.7 right triangles.notebook
January 26, 2017
do now:
Turn in your Pythagorean Theorem packet from last class then ...
Get the following:
« one piece of patty paper ­ small wax paper (per pair)
« a pair of scissors (per pair) « a ruler
« a calculator
Jan 25­7:40 PM
Chapter 7 Test Answers
1. B
8. B
15. A ***
2. C
9. C
16. A
3. A
10. B
17. D
4. B
11. A
18. D
5. A
12. B
19. A
6. A
13. C
20. B
7. A **
14. D
Jan 25­5:31 PM
1
5.7­5.7 right triangles.notebook
January 26, 2017
What are the areas of the squares below?
7
3
15
Jan 25­6:50 PM
What are the areas of the squares below?
a2 + b2 = c2
Jan 25­7:01 PM
2
5.7­5.7 right triangles.notebook
January 26, 2017
Find x.
Find the missing side.
Jan 25­7:05 PM
Jan 25­7:14 PM
3
5.7­5.7 right triangles.notebook
January 26, 2017
Jan 25­7:15 PM
"Special Right Triangles" ­ two types
45o ­ 45o ­ 90o
–
–
–
–
fold the patty paper in half diagonally
cut the paper down the diagonal
identify the right angle, two legs and the hypotenuse
measure each side of the patty paper and write down the measurements on the paper
– lastly, take the length of one leg and multiple it by √2
» what is this equivalent to?
Find the value of x.
Jan 25­7:15 PM
4
5.7­5.7 right triangles.notebook
January 26, 2017
Jana is cutting a square of material for a tablecloth. The table’s diagonal is 36 inches. She wants the diagonal of the tablecloth to be an extra 10 inches so it will hang over the edges of the table. What size square should Jana cut to make the tablecloth? Round to the nearest inch. Jan 25­7:42 PM
A 30°­60°­90° triangle is another special right triangle.
You can use an equilateral triangle to find a relationship between its side lengths.
Jan 25­8:38 PM
5
5.7­5.7 right triangles.notebook
January 26, 2017
Find the value of x and y.
Jan 25­8:39 PM
Jan 26­8:06 AM
6