Wiki User
∙ 12y ago165
Wiki User
∙ 12y agoInterior angles add up to 900 degrees So: 900-80-85-175-90-140 = 330 And: 330/2 = 165 degrees which is the measure of the congruent angles
It is called a Heptagon. The sum of the measures of the angles of a heptagon is 900 degrees. See the related link for more info on types of polygons.
128.57 degrees
The 7 interior angles of a heptagon add up to 900 degrees
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
A heptagon has 7 sides and 7 angles. The sum of the interior angles is 900°. If the heptagon is a regular heptagon, meaning all sides and angles are congruent, then the formula (180(n-2))/ n gives the individual interior angle measure. "n" is the number of sides in this case. In a regular heptagon, the interior angle measures 128 4/7 degrees.
It is 146 degrees.
Interior angles add up to 900 degrees So: 900-80-85-175-90-140 = 330 And: 330/2 = 165 degrees which is the measure of the congruent angles
It is called a Heptagon. The sum of the measures of the angles of a heptagon is 900 degrees. See the related link for more info on types of polygons.
128.5714286 degrees
The measure of each base angle in an isosceles triangle can be calculated by dividing the total angle sum by the number of base angles, i.e., (180 - vertex angle) / 2. In this case, each base angle of the isosceles triangle would measure (180 - 38) / 2 = 71 degrees.
128.57 degrees
The 7 interior angles of a heptagon add up to 900 degrees
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
Total interior angles ((2 x 7) - 4) right angles ie 900 degrees. Given angles total 570 degrees so each of the other angles is (900 - 570)/2 ie 165 degrees.
it's a heptagon
900 degrees