Geometry
posted by Taylor .
1.) what is the length of the line segment whose endpoints are (1,1) and (3,3)?
2.) what are the coordinates of the midpoint of the line segment whose endpoints are (c,0) and (0,d)?
3.) The diagonals of a rhombus have lengths of 8 cm and 6 cm. The perimeter of the rhombus is?
4.) ABCD is a rectangle, E is a point on CD, the measure of angle DAE = 30 degrees and measure of angle CBE= 20 degrees. What is the measure of angle x?

Geometry 
Reiny
Tutors don't mind helping with some individual questions, but we are not prepared to do an assignment for you nor to do your homework for you.
I gave you the formulas for #1 and #2 when you posted under the name of Taylor
http://www.jiskha.com/display.cgi?id=1329662216
What part of just plugging in the above numbers do you have difficulties with ?
for #3, the diagonals of a rhombus bisect each other at right angles. Make a sketch to see 4 rightangled triangles, then use Pythagoras to find the length of the sides of the rhombus.
In #4, I have no clue where x is.
However, all angles can be found quite easily.
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