Teroka Ria

四种三角形 = empat jenis segi tiga 等边三角形：三条边一样长，三个角都是锐角。等腰三角形：两条边一样长，图中的角都是锐角。不等边三角形：三条边都不一样长，图中这一个有一个钝角和两个锐角。直角三角形：有一个直角，另外两个是锐角。 例子：一面三角形小旗有两条长边一样长、一条短边，它是等腰三角形。 注意：直角三角形只能有一个直角。

four kinds of triangle = empat jenis segi tiga Equilateral: three equal sides and three acute angles. Isosceles: two equal sides, and the angles shown are acute. Scalene: no two sides are equal; the one shown has one obtuse angle and two acute angles. Right-angled: one right angle, and the other two are acute. Example: a triangular pennant with two equal long sides and one short side is isosceles. Watch out: a right-angled triangle can have only one right angle.

名称配特征 = padankan nama dengan ciri 左边是四种三角形的名称，右边是特征。先想每个名称是根据什么来命名的：有的看几条边一样长，有的看有没有直角。点一个名称，再点和它相配的特征。 例子：名称里有“直角”两个字的三角形，特征一定和角有关。 注意：每张卡只配一次，配对错了可以再试。

matching names and features = padankan nama dengan ciri On the left are the names of four kinds of triangle; on the right are features. Think what each name is based on: some describe how many sides are equal, others whether there is a right angle. Tap a name, then tap the feature that goes with it. Example: a triangle whose name mentions a right angle must have a feature about angles. Watch out: each card is used once; if a pair is wrong, try again.

分类：等腰三角形 = kelaskan segi tiga sama kaki 等腰三角形刚好有两条边一样长。在图上，一样长的边画着红色短线。逐个检查六个三角形：数一数有几条边带红线，刚好两条的才符合。三角形转了方向、倒过来，也一样算。 例子：一个倒立的三角形，左右两条斜边都有红线，底边没有，也是等腰三角形。 注意：六个三角形每一个都要检查。

sorting isosceles triangles = kelaskan segi tiga sama kaki An isosceles triangle has exactly two equal sides, and in the pictures equal sides carry short red marks. Check all six triangles one by one and count the marked sides; only those with exactly two fit. A triangle that is turned or upside down still counts. Example: an upside-down triangle with red marks on its two slanting sides but none on the third is isosceles. Watch out: give every triangle a careful look before pressing Semak.

认三角形 = namakan segi tiga 先看边：图上有没有红色短线？没有记号，表示三条边都不一样长。再看角：有没有红色小方块？橙色弧线标的那个角比直角大还是小？把边和角的线索合起来，再对照分类图。 例子：一个四边形四条边都带同样的红线，表示四条边一样长。 注意：不要只看形状扁不扁，要看记号。

naming a triangle = namakan segi tiga Look at the sides first: are there any short red marks? No marks means all three sides are different. Then look at the angles: is there a small red square, and is the angle with the orange arc bigger or smaller than a right angle? Put the side and angle clues together and compare with the chart. Example: a four-sided shape with the same red mark on all four sides has four equal sides. Watch out: do not judge by how flat the shape looks; use the marks.