Riddles
Spirituality in circles
Equation of circles
Relationship in Circles
Mathematical Monuments
100

A circle has this number of sides. Identify them.

2; inside and outside

100

What is the enso?

In Zen Buddhism, this is the most well-known symbol of a circle drawn in one or two brushstrokes that is used to express “a moment when the mind is free to let the body create.”

100

This equation represents a circle with a radius of 4 centered at the origin.

x^2 +y^2 =16  

100

This arc also measures 30 degrees because __________.

Arc BD because CD is parallel to AB and they cut the same arc in the circle on both sides.

100

This religious and popular tourist building in India is a great example of line symmetry – with two lines, one vertical down the middle, and one along the waterline, showing the reflection of the prayer towers in the water.

Taj Mahal

200

What happens when you eat too much pi?

Your circumference increases

200

what is  yang ? In Chinese cosmology,  the circle represents this force of nature.

Yang represents the heavens (circle) and yin represents the earth (square).

200

What is the equation of a circle with a center of (2,-3)  and a radius of 6?

(x-2)^2 + (y+3)^2 = 36

200

In circle O with diameter AOB, central angle AOC measures 50 degrees. What is the degree measure of angle AOB?

180 degrees

200

This pyramid in Cairo, Egypt is one of the Seven Ancient Wonders of the World and was one of the tallest man-made structures in the world for 3,800 years.

Pyramid of Giza

300

This object is blue, soars high and has a value of 3.1429.

Pi in the sky

300

What is qigong?

With roots in Chinese medicine, philosophy, and martial arts, this practice uses the motion of circles to build core strength and increase overall vitality. It is traditionally viewed throughout Asia as a practice to cultivate and balance of chi.

300

Given circle: x^2 - 9x + y^2 = 4.75
In center-radius form, this equation will be written as

(x - 4.5)^2 + y^2 = 25

300

In circle P, radii AP and PQ are perpendicular at point P(center). If AP has a length of 5, what is the length of AQ, in radical form?

5 radical 2 OR radical 50

300

Constructed in 430 or 440 BC, this building in Athens, Greece was constructed based on the Ancient Greek ideals of harmony, demonstrated by the building’s perfect proportions. The width to height ratio of 9:4 governs the vertical and horizontal proportions of the temple as well as other relationships of the building, for example the spacing between the columns.

The Parthenon

400

why can’t have a reasonable conversation with Pi?

a) because he is irrational  OR 

b) because he goes on forever

400

In numerology, the circle is best represented by this number which symbolizes completion, wholeness, and perfection.

#10. The number 10 also reduces down to the number 1 (1+0=1), which represents new beginnings and unknown potential. Just like a circle, the number 10 represents both a beginning and an end. 

400

Write the general equation of a circle that is tangent to the x-axis, with a center located at (4,-6).

X^2 -8x +y^2 + 12y +16 = 0

400

This is the number of degrees in arc BD.

44

400

This “Project”, in South West England, opened in 2001 and now ranks as one of the UK’s most popular tourist attractions. Although visitors come to check out what’s inside, the greenhouses – geodesic domes made up of hexagonal and pentagonal cells – are pretty neat too.

The Eden Project

500

what do you get when you take a cow and divide its circumference by its diameter?

A cow Pi

500

What is heaven?

In Christianity, the circle represents eternity and sacred union. A circle has been referenced many times in the Bible as the beginning and ending of time.

500

This equation would represent the translation by 3 units right and 2 units down of the circle x^2  + y^2 = 4  

(x-3)^2  + (y-2)^2 = 4

500

This is the number of values of x that makes arc AB equal to arc CD in the diagram

1. (It didn't ask for how much x was = to, it is asking you about how many values of x make 2x-20=x+20 true.

500

This museum in Bilbao, Spain is intended to mimic a ship. The titanium panels, which look like fish scales, were designed to appear random but actually relied on Computer Aided Three Dimensional Interactive Application. It shares its name with a museum in Manhattan.

Guggenheim Museum

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