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If three angles in a hexagon measure 140 degrees what are the measures of the other three angles?
55 degrees
Is a parallelogram a type of triangle?
No, it is not a type of triangle as a triangle is defined as a polygon with three sides and three angles and a parallelogram has four sides and four angles.
The sum of three angles of a parallelogram is 262 degrees what is the measurement of the fourth angle?
The sum of the angles of a parallelogram are 360. Therefore, if three of the four angles equal 262 the fourth angle is equal to 360 - 262 or 98.
Why is a rectangle a parallelogram but a parallelogram is not a rectangle?
A rectangle has three rules: -2 pairs of parallel sides -four 90 degree angles -2 pairs of congruent sides A parallelogram has three rules: -2 pairs of parallel sides - 2 pairs of congruent angles -2 pairs of congruent sides The only difference is that a rectangle has 90 degree angles, which a parallelogram doesn't have. That's why a parallelogram can't be a rectangle. A rectangle follows all the rules of being a parallelogram, so it can be a parallelogram.
If three angles of a quadrilateral are congruent and the average of the measures of two angles of the quadrilateral is 80 which number could NOT be the measure of an angle of the quadrilateral?
There are only 4 possible numbers which could be measures of the angles for the quadrilateral. Each of the infinitely many other measures, such as 36.57 degrees, could NOT be the measure.
