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Math Blaster Jr. is a 1996 educational video game in the Blaster Learning System series aimed at teaching mathematics to children aged 4–8. The game was rebranded as Math Blaster: Ages 4-6 in 1997. [1] Math Blaster Jr. was followed by Reading Blaster Jr. and Science Blaster Jr., which shared characters, artwork, and music.
The formula for the area of a trapezoid can be simplified using Pitot's theorem to get a formula for the area of a tangential trapezoid. If the bases have lengths a, b, and any one of the other two sides has length c, then the area K is given by the formula [2] (This formula can be used only in cases where the bases are parallel.)
Shoelace scheme for determining the area of a polygon with point coordinates (,),..., (,). The shoelace formula, also known as Gauss's area formula and the surveyor's formula, [1] is a mathematical algorithm to determine the area of a simple polygon whose vertices are described by their Cartesian coordinates in the plane. [2]
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A right trapezoid (also called right-angled trapezoid) has two adjacent right angles. [13] Right trapezoids are used in the trapezoidal rule for estimating areas under a curve. An acute trapezoid has two adjacent acute angles on its longer base edge. An obtuse trapezoid on the other hand has one acute and one obtuse angle on each base.
Christopher Danielson developed a new set of blocks, called Twenty-First Century Pattern Blocks. [8] The rhombus in this set has the same size as the blue rhombus in the traditional set. The dart and the 30°–60°–90° triangle have the same area, while the kite and the hexagon are twice that area. Like the traditional set, all the angles ...
Here all pieces have the same width and can be put in a perfect line segment. At present this puzzle is for instance sold by HIQU and comes with 100 figures to make and by Eureka Toys and Games in a puzzle called brain twister. [28] [29] Gardner's T: This is the version featured in Martin Gardner's Scientific American column. [6]
Playing with both these variations makes the game quite difficult, but a very skilled player will still be able to win at least two games out of three. Devil's Grip is a broadly related game with similar game-play to Calculation, using two-decks stripped of the Aces, [9] and playing cards to a 3x8 grid where cards increase by three in rank. [10 ...