Solve for the missing variable.

Mathematics

2 answers:

tigry1 [53]3 years ago

3 0

There wasn't much to go off of but based of the information you've gave me the answer would be 7.68=6.28

vazorg [7]3 years ago

3 0

Actually the circumference of a circle is :

C =2Pi*r

Where r = radius, the radius term r, was missing in your expression.

C = 2Pi*r

7.68 = 2*3.14*r

2*3.14*r = 7.68

6.28r = 7.68

r = 7.68 / 6.28

<span>r ≈ 1.223

So in solving for the missing variable, </span><span>r ≈ 1.223

Hope this explains it.</span>

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Mkey [24]

Answer:

1) a = 110

2) b = 65

3) c = 115 d= 65 e = 115

How I found the last one?

The whole thing equals 360.

d is equal to 65 so I added those together.

That equals 130. So i subtracted that from 360.

I got 230. Next, I divided that by 2 to get the final 2 angles.