Question

Jade and Lisa walk from point D to point B of a rectangular park. Jade walks along the diagonal DB. Liza walks from point D to point A and then from point A to point B as shown below.

Answer 1

http://tinypic.com/view.php?pic=1055ym0&s=6

Answer 2

How many more meters does Lisa walk than Jade? Using complete sentences, justify your answer.

Answer 3

20m, cause Lisa walked 70m and Jane 50m.

Answer 4

so lisa walked 20m more then jade? how did you get thst?

Answer 5

You see the triangle? You can do Thales' Theorem or see that is a pitagoras triangle (3,4,5).

Answer 6

ok thanks, can you help with another pne please?

Answer 7

send...

Answer 8

Annie is making a design of a building. In order to make an accurate design, she has to use a drafting triangle having a vertex angle exactly equal to 90°. Annie has the drafting triangles shown below.

http://tinypic.com/view.php?pic=f4fwoj&s=6
Which drafting triangle is accurate? Using complete sentences, justify your answer.

Answer 9

You do using the Pythagorean' Theorem. The right answer is the Triangle 1.

Answer 10

but i do not understand how do to the pythagorean theorem :/

Answer 11

http://www.mathguide.com/lessons/pic-pythagorasT.gif

Answer 12

http://www.mathsisfun.com/geometry/images/pythagoras-3-4-5.gif This explain the first question

Answer 13

can you please just explain to me how to found it was the first triangle

Answer 14

TRIANGLE 1

7²+24²=x²
x²=625
x=25
so, this is a rectangle triangle.

TRIANGLE 2

6²+20²=x²
x²=426

so, this isn't a rectangle cause x²=426 is not equal 24

Answer 15

thankyou!