Easy
x+5=12
x=7
3x−4=11
x=5
2(x−3)+5=13
x=7
3x/4+2=x/2+5
x=12
x2−6x+5=0
x=1 or x=5
What is the sum of the interior angles of a triangle?
180∘
A square has a side length of 6 units. What is its area?
36 square units
What is the circumference of a circle with a radius of 7 units?
(Use pi)
14pi
A right triangle has legs of length 9 and 12. What is the length of the hypotenuse?
15
(using the Pythagorean theorem)
What is the volume of a sphere with radius 3 units?
(Use pi)
36pi cubic units
Who was the first President of the United States?
George Washington
In which year did World War II end?
1945
Which ancient civilization built Machu Picchu?
The Inca civilization
What was the name of the ship on which Charles Darwin traveled during his famous voyage?
HMS Beagle
Which treaty, signed in 1648, ended the Thirty Years’ War and reshaped the political map of Europe?
The Peace of Westphalia
What does “www” stand for in a website address?
World Wide Web
Which company originally created the video-sharing platform YouTube?
PayPal (it was founded by former PayPal employees)
What year was the first website launched?
1991
What does the acronym “HTTP” stand for?
HyperText Transfer Protocol
What was the name of the first graphical web browser released to the public?
Mosaic
What number is known as the only even prime?
2
What is the name of the mathematical constant approximately equal to 1.618?
The Golden Ratio (φ)
Which scientist proposed the uncertainty principle?
Werner Heisenberg
What ancient text is considered the oldest surviving epic poem?
The Epic of Gilgamesh
What is the name of the hypothetical boundary around the observable universe, beyond which light has not yet had time to reach us?
The cosmic light horizon (or particle horizon)