Geometry questions This is a list of recently added questions about geometry. Play geometry quiz and see all the questions. How many degrees an obtuse angle can have ?90-180. The obtuse angle may measure from 90 to 180 degrees. Angles having a degree of 0 to 90 are acute angles, whereas those from 180 to 360 - concave angles.Created by: TotalBellendeasy 77% 0-3600-36027390-18090-18052630-900-90175180-360180-3601120mathematics riddles » What is the volume of a soap bubble with radius R=1 cm?4/3π cm3. Equation for the volume of a sphere: 4/3πR^3.Created by: Paweł Kołodziejczykhard 57% 3/4π cm33/4π cm315304/3π cm34/3π cm344214,3π cm34,3π cm3797It isn't possible to calculateIt isn't possible to calculate901numbers riddles » If Earth's radius was larger by 1 meter, how much longer would its equator be?By approx 6 meters. For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the initial value of radius was.Created by: SpikeMehard 44% by approx 6 metersby approx 6 meters6602by approx 6 kilometersby approx 6 kilometers2551by approx 60 kilometersby approx 60 kilometers3122by approx 6000 kilometersby approx 6000 kilometers2509Earth riddles » How many edges does a cube have?12. A cube has six square faces, each of which has four edges - but each edge is shared with another face.Created by: globalquiz.orgeasy 79% 4419488122512121013316161189math riddles » How many edges does a Möbius strip have?One. The Möbius strip is a surface with only one side and only one boundary component (edge). A line drawn starting from the seam down the middle will meet back at the seam but at the "other side". If continued the line will meet the starting point and will be double the length of the original strip.Created by: globalquiz.orgeasy 73% oneone8343twotwo2049threethree522fourfour423mathematics riddles » What is the maximum distance a plane can fly travelling constantly North?20,004 km. Continous travel North must eventually end at the North Pole. So, the maximum distance is half of the Earth's meridional circumference, which can be reached if a plane starts at the South Pole.Created by: globalquiz.orghard 42% 10,002 km10,002 km110620,004 km20,004 km484040,007 km40,007 km2005It can fly endlessly (as long it can)It can fly endlessly (as long it can)3377aviation riddles » Which direction is not possible to point at when standing at the South Pole?Neither east, west, nor south. At the South Pole every direction is north.Created by: globalquiz.orgaverage 68% easteast383westwest357northnorth3338neither east, west, nor southneither east, west, nor south8779Antarctic riddles » How is this polygon called? (the one over the circles)Square. In this Ehrenstein illusion the sides of a square placed inside a pattern of concentric circles take an apparent curved shape. But in reality, the sides are straight.Created by: Debbie Foxeasy 75% squaresquare16611rhomboidrhomboid2288concave squareconcave square1936concave rhomboidconcave rhomboid1311illusions riddles » Which shape is larger?None of them. Both shapes are the same, but the bottom one is placed more to the right. This is however difficult to notice. It is known as Jastrow Illusion.Created by: globalquiz.orgaverage 61% AA702BB4236None of themNone of them12617Both are largerBoth are larger2934optical illusions riddles » Which line is the longest?All are the same. This illusion has a long research history. It seems that people living in urbanized areas perceive the lines as representing the corners of rectilinear objects viewed in perspective, being more susceptible to illusion than people from rural areas.Created by: globalquiz.orgvery easy 85% AA406BB1283CC237All are the sameAll are the same11633technology riddles » Play mathematics quiz and see all the questions.