Posted by **joyce** on Sunday, April 3, 2011 at 2:09pm.

if an angle has 40DEGREES and 80 dgrees what is the missing number?

- math -
**Brittany**, Sunday, April 3, 2011 at 3:47pm
Umm I think Its 60, if I know what you mean, if its a triangle. ( learned that if you press alt and 0176, it will give you the degree sign.

A triangle is 180°.

You take 40+80, and get 120.

So then you take 180-120, and get 60°.

- math -
**Anonymous**, Sunday, April 3, 2011 at 4:18pm
If your figure is triangle sum of angles must be 180°

40°+80°+x=180°

120°+x=180°

x=180°-120°

x=60°

## Answer This Question

## Related Questions

- Trigonometry - Two men on the same side of a tall building notice the angle of ...
- Math - Imagine a triangle with a line extending out of it, I know two of the ...
- College Math - Find the measure of the missing angle a= 28 degree, b=97degree I...
- MATH - I'M HAVING A PROBLEM WITH THIS PROBLEM,IT SAY'S FIND THE MISSING NUMBER ...
- math - find the missing length of the right triangle the bottom number is 15 and...
- Math-Proportions - My math question says- 1 1/2:9 = x:18 Now I gotta figure out ...
- Math - If the average of these four numbers is 21, find the missing number. 12, ...
- Math - Atop 50m tower, Jack sees smoke in two areas. One is on a bearing of ...
- math-triangles - finding the hypotenuse for triangles with only one measure of 7...
- Math repost - trapezium ABCD, with AB and DC being parallel, with diagonal ...

More Related Questions