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math
The measure of an interior angle of a regular polygon is 135 degrees. Find the number of sides in the polygon. This is what I tried: 180(x2)=135 [Interior Angle Sum Theorem] x2=.75 x=2.75 That can't be right though. Help? Not
asked by Emily on March 27, 2007 
Algebra II
1. Find the value of 5 + 8 x 2 divided by 4  11 2. Evaluate (ay)^2 + 2y^3, if a =2 and y= 3 3. Evaluate a3b, if a=2 and b = 6 4. The formula A= 180 (n20 OVER N relates the measure A of an interior angle of a regular
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If I have a polygon with x+2y sides, how do I find the interior and eterior angle? I know that to find the interior angle you use 180(x2) and for the exterior you use 360/x. But do i just plug in x+2y for every x? I'm lost
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Geometry
In a regular polygon (equal sides and angles), you use (n2)180 to find out what the interior angle sum is (n=number of sides in polygon) and you divide by that number by whatever n is to find out the measure of an individual
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In a certain triangle the measure of one angle is triple the measure of a second angle but is 110 degrees less than the measure of the third angle. [The sum of the measures of three interior angles of a triangle is always 180
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Given: in triangle ABC, angle B= 120 degrees Prove: angle A does not= 60 degrees Plan: use indirect proof Assume temporarily that Measure angle A = 60. Then measure angle C=60, and measure angles A+B+C=180= 60+B+60=180. Therefore
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basic geometric
a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur? The angles of a triangle always adds to 180o. You know two of the angles,
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Math
The measure of each interior angle of a regular polygon with n sides is [(n  2)180 / n] degrees. What is the measure of each interior angle of a regular polygon with n sides, in radians? A. (n  2)pi / 4n B. (n  2)pi / 2n C. (n
asked by Anonymous on May 3, 2015 
Math
Prealgebra Find the sum of the interior angles of a nonagon. (1 point) 140° 1,620° 1,260° 1,450° 4. Find the measure of each interior angle of a polygon with 12 sides. (1 point) 1,800° 150° 180° 145° 5. Four of the angles
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7th grade math Ms. Sue please
2. Find the sum of the interior angles of a nonagon. (1 point) 140° 1,620° 1,260° 1,450° 4. Find the measure of each interior angle of a polygon with 12 sides. (1 point) 1,800° 150° 180° 145° 5. Four of the angles of a
asked by Delilah on February 5, 2013