17 Answered Questions for the topic Geometry Polygons

09/07/18

#### whats the scale factor if these polygons are proportional?

please answer in a format like: prop, s.f.= 1:4    1. A = 2, 6, 8, 9 B = 4, 12, 16, 18   2. A = 2, 3, 6, 10 B= 6, 9, 18, 30   3. A = 7, 10, 14, 15 B = 17.5, 25, 35, 37.5   4. A = 4, 4, 5, 6... more

06/16/18

#### How to find Area of triangle PQR?

ABCDEF is a regular hexagon of side 12 cm. P. Q and R are the mid points of the sides AB, CD and EF respectively. What is the area (in cm2) of triangle PQR?

02/28/18

#### The measures of the angles of a pentagon are in the ratio of 3:3:3:4:5. What is the number of degrees in the measure of the largest angle?

There is no diagram or anything I just need help with these problem please. Thank you so much!

02/22/18

11/13/17

#### why do you have to subtract 2 in the formula (n-2)180 (this is the sum of interior angles of polygons formula).

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... more

11/02/17

08/27/17

#### The denominator of a fraction is 1 less than 3 times it's numerator. If the numerator and denominator are increased by 3, the fraction becomes 1/2.

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

06/01/17

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

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?

12/18/15

#### Two landmarks find distance without going in water

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... more

07/19/15

#### hard geometry question

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... more

04/25/15

#### How would you find out the area of a regular polygon?

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

03/16/15

#### What is the area of the stop sign to the nearest square inch?

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

08/11/14

#### if a polygon has a area of 13 cm ^2 and its dilated by a factor of 4. What will be the area of the of the dilated polygon?

Geometry help. i dont understand any of this.

04/28/14

#### Parallelogram angles?

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

03/23/14

#### Devon and Jamal both draw regular polygons. Devon's polygon has 14 sides. Jamal's polygon has 15 sides. Which statement is NOT true?

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

03/14/14

#### 100 congruent triangles that each has an angle of 15°. how many triangles would need to make a pinwheel?

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

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