Tuesday, November 16, 2010

Homework Book: Odd Questions

1) The _______ relationship can be used to determine the _______ of the _________
of a right triangle when the lengths of the two_______ are known.

pythagorean, lengths, hypotenuse, legs

3)Determine the length of each hypote
nuse.show your work.
A)












a²+b²=c²
9cm²+40cm²=c²
9x9+40x40=c²

81cm²+1600cm²=c²
1681cm²=c²
√1681cm²=√c²
41cm=c












B)












a²+b²=c²
12m²+35m²=c²
12x12+35x35=c²
144m²+1225m=c²
1369m²=c²
√1369m²=√c²
37m=c











5)Calculate the missing side length for each right triangle, to the nearest tenth of a centimetre. Show your work.
A)











c²-a²=b²
6cm²-5cm²=b²
6x6+5x5=b²
36cm²+25cm²=b²
11cm²=b²
√11cm²=√b²
3.3cm=b











B)












c²-b²=a²
12cm²-7cm²=a²
12x12+7x7=a²
144cm²+49cm²=a²
95cm²=a²
√95cm²=√a²

9.7cm=a












7)A triangle is made up of two smaller congruent right triangles.












A)Find the length of the hypotenuse for the right triangles, to the nearest tenth of a metre. Show your work.
a/2=a²
8/2=4

a²+b²=c²
4²+2²=c²
4x4+2x2=c²
16m²+4m²=c²
20m²=c²
√20m²=√c²
4.5m=c

B)Calculate the perimeter of the large triangle, to the nearest tenth of a metre. Show your work.
a+b=perimeter
8+4.5=17 m

Here is a link about Pythagorean Relationship.

Here is a video using math link textbook about pythagorean relationship.

7 comments:

  1. Nice post Paul. Good use of color and it looks very neat. I also liked the video and link. I also like your pictures but I think you got some of them mixed up. Other than that great job.

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  2. Good job, Paul! I liked all the colours you used in your post and I also liked the video and your link. I thought your post was very well done. Thank you for showing your work when answering the questions too.

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  3. Everything was great, but I suggest that next time you do a fill in the blank work you should type out the question and highlight the word being used because it was alittle confusing.

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  4. Great job Paul. It is so neat and I like the pictures. I love the colours that you added and the link and video was very helpful.

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  5. Great job, Paul. I liked how you added pictures to explain everything on your post. You had also added a video and a link which is very helpful. Good job.

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  6. Good job Paul. I like how you used a variety of colours and your work neatly done.

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  7. Good Job Paully! i like the pictures you added and how your post is so red and black BUT next time you should use more colors :)

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