Nürinurk Nürinurk on nurk, mis on suurem kui 90° ja väiksem kui 180°. Nürinurk on suurem kui täisnurk ja väiksem kui sirgnurk. Nürinurk näeb välja selline: Siin sa võid Geogebra abil joonestada erinevaid nurkasid: https://www.geogebra.org/m/scavsujt […]
Silt: Greek Alpha
Value
Value In math, value is a number signifying the result of a calculation or function. Examples: The value of 4 x 6 is 24 The value of x + y if x = 6 and y = 3 is 9. y=2x + 3, the value of y if x = 4 is 11 ( y = 2 · […]
Numerator
Numerator Numerator is the part of a fraction that is above the line and signifies the number of parts selected or removed from the total number to be divided by the denominator. […]
Number
Number Number is a unit or a symbol that forms part of a system of counting and calculating, and that represents an amount or position in a series. The most basic examples are the natural numbers 1, 2, 3, 4, 5, 6, 7, 9, 10, 11……and so on. In mathematics, the notion of number has been extended over […]
Obtuse triangle
Obtuse triangle An obtuse triangle or obtuse-angled triangle is a type of triangle that has one obtuse (greater than 90°) angle. As the sum of all the interior angles of a triangle is 180°, an obtuse-angled triangle has one obtuse angle and two acute angles (less than 90° each). An obtuse triangle is like this: […]
Negative number
Negative number A negative number is a number whose value is always less than zero and it has a minus (-) sign before it. On a number line, negative numbers are represented on the left side of zero. They can be integers, decimals, or fractions. For example: -7, -24, -3/5, -0.8 are termed as negative numbers. Here […]
Negative integer
Negative integer A negative integer is the opposite of a natural number. It is not a fraction or a decimal. It is a number whose value is always less than zero and it has a minus (-) sign before it. For example, -3 and -5 are negative integers. On a number line, negative numbers are represented on the […]
Sajand
Sajand Sajand on 100-aasta pikkune periood ajaarvamises. Seega sada aastat on sajand, sajandeid saame arvutada arvkiirel. Praegu on 21. sajand. Eelmine sajand oli 20. sajand ja üle-eelmine sajand oli 19. sajand. Näiteks: 19. sajand oli ajaperiood aastast 1801 kuni 1900. 21. sajand algas 1. jaanuaril 2001 ja lõpeb 31. detsembril 2100. […]
Incircle, incentre, inradius
Incircle, incentre, inradius -An incircle is a closed plane curve whose points are equidistant from another point located inside it, called centre. -An incentre is the point from which all points are equidistant. -An inradius is a linear segment joining any point on the circumference or the surface of a sphere with its centre. Link: https://www.youtube.com/watch?v=KEOa_WUoItY […]
Täisarv
Täisarv Täisarvud on naturaalarvud koos nende vastandarvudega. Täisarv võib olla positiivne arv, negatiivne arv või null. Täisarve kasutatakse loendamiseks, kauguste mõõtmiseks või hulkade puhul. Täisarve kasutatakse ka matemaatika valemites ja võrdustes. Siin on mõned näited täisarvude kohta: 1, 2, 3, 4, 5, … (positiivsed täisarvud) -1, -2, -3, -4, -5, … (negatiivsed täisarvud) 0 (null) […]
