2 years ago

Find the missing value and please show how

2 answers:

5 0

35 degrees
93 is a vertical angle and 180-128 is the other angle so you u find what needs to be the last angle so it adds up to 180 degrees

vazorg [7]2 years ago

4 0

Answer:

I'm sorry, but I don't know how to figure it out, but you can use a protractor to find it if you have one, just put it on your computer screen and you can find the angle. I hope this helps, sorry I don't know how to do it.

Step-by-step explanation:

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3 years ago

The length of a rectangle is 3cm greater than its width. the perimeter of the rectangle is 34cm. find its length.

mamaluj [8]

Answer:

10cm

Step-by-step explanation:

The formula for perimeter is:

$P=2(l+w)$

Let the width of the rectangle be x then the length would be...

3+x

Now, let's plug these values into the equation and solve. (Note we are also given perimeter is 34 cm):

$34=2(x+3+x)\\34=2(2x+3)\\Distribute\ the\ 2\ to\ each\ term\ in\ the\ parentheses\\34=2(2x)+2(3)\\34=4x+6\\Subtract\ 6\ from\ both\ sides\\4x=28\\Divide\ both\ sides\ by\ 4\\x=7$