Because ABCD is a rectangle, the length of CD is 12 cm.
We need to determine the length of DE. If we can do that, then the sum of the lengths of CD and DE represents the unknown: the length of CE.
To find the length of CE, we have to "solve" the upper triangle.
Here's an outline of what to do:
1. Show that BC=AD and find the length.
2. Note that angle CAD is 60 degrees. Why?
3. Note that angle EAD is 30 degrees. Why?
4. Find the length of ED
5. Add ED and DC, that is, ED + 12 cm. This is your answer.
Please ask questions if need be.
Answer:
4/9 times 2/1 and 8/9
Step-by-step explanation:
ya know its called trust? :) this is right. F edgenuity
Answer:
x>-4 x≤-8
Step-by-step explanation:
7+3x=2x+2
Send constants to one side and others to one side
3x-2x=2-7
x=-5
Answer:
either (-1,-1) or (-4,-4)
Step-by-step explanation:
