I am trying to explain the formula (n-2)180 used to find the sum of interior angles of polygons, I understand the formula but I'm just wondering why it's minus 2? I know that you can also split...

I am trying to explain the formula (n-2)180 used to find the sum of interior angles of polygons, I understand the formula but I'm just wondering why it's minus 2? I know that you can also split...

Please help me because Geometry is soooooooo hard!!!!!!!!!!

8th grade maths...

I need to find the fraction. Tried everything I could think of. also this is 8th grade maths

I have a dilation/enlargement of a polygon for homework, but I don't have many notes. Let's say point A is (14.5, 30) and point B is (17, 30), and I want to enlarge it by a scale factor of three....

Hello there lovely math people! I'm trying to find the correct term to best describe these types of vertically repeating N-gonal shapes: https://cdn.instructables.com/FSC/CG73/HDOVWKOB/FSCCG73HDOVWKOB...

Polygon A has side a=3 and an area of 12 in2. If the similar polygon B has corresponding side b=5, what is the area of polygon B?

IF you know the apothem of a polygon, how would you find it's area? What is you know one side? The radius?

Devon and Jamal both draw regular polygons. Devon's polygon has 14 sides. Jamal's polygon has 15 sides.

Two landmarks are in opposite sides of a lake And are facing each other. You have been asked to find the distance between the landmarks; however, you can only use distance in the land. Describe a...

Four distinct points are chosen at random on a circle. LIne segments are then drawn connecting every possible pair of these points. Theses line segments divide the interior of the circle into how...

A stop sign is a regular octagon with a 16.2 inches radius. The area should be rounded to the nearest square inch.

So theres 100 congruent triangles that each have a measure to 15°. How many of these triangles are needed to make a pinwheel

Do the angles of a parallelogram have a certain measure or do they just have different measures in each problem?

Geometry help. i dont understand any of this.