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认角 = kenal sudut 判断一个角，要拿直角来比。直角像作业簿的角。想象把作业簿的角放上去，一条边对齐，看另一条边落在哪里：在里面就比直角小，在外面就比直角大，重合就是直角。 例子：门打开得很大时，门和墙之间的角比直角大，边落在直角外面。 注意：画得斜斜的角也一样判断，方向不影响大小。

naming an angle = kenal sudut To judge an angle, compare it with a right angle, like the corner of an exercise book. Imagine laying the book corner on it with one arm lined up, and see where the other arm falls: inside means smaller, outside means bigger, on top means equal. Example: when a door is opened very wide, the angle between the door and the wall is bigger than a right angle, so its arm falls outside. Watch out: a tilted angle is judged the same way; its direction does not change its size.

顶点数和角数 = bilangan bucu dan sudut 在每一个顶点上，两条边相交形成角。想知道一个图形有几个角，可以先画出这个图形，在每个顶点画一条小弧线，再数弧线。 例子：画一个四边形，在四个顶点各画一条弧线，一共数到四条弧线。 注意：从一个顶点开始数，绕一圈回到起点就停。

vertices and angles = bilangan bucu dan sudut At every vertex two sides meet and form an angle. To find how many angles a shape has, you can sketch the shape, draw a small arc at each vertex and then count the arcs. Example: sketch a four-sided shape and draw an arc at each of its four vertices; you count four arcs. Watch out: start counting at one vertex and stop when you get back to it.

三角形里的锐角 = sudut tirus dalam segi tiga 锐角是比直角小的角。把三角形的角一个一个拿来和直角比较：可以想象把折好的直角纸放在每个角上，看它比直角小、一样，还是比直角大，再把比直角小的数出来。 例子：正方形的四个角都和直角纸刚好重合，所以正方形没有锐角。 注意：每个角都要比较，每个角只数一次。

acute angles in a triangle = sudut tirus dalam segi tiga An acute angle is smaller than a right angle. Compare the angles of the triangle with a right angle one at a time: imagine laying a folded right-angle paper on each angle and see whether it is smaller, the same or bigger, then count the smaller ones. Example: all four angles of a square fit the right-angle paper exactly, so a square has no acute angles. Watch out: compare every angle, and count each angle only once.

比直角大 = lebih besar daripada sudut tegak 把折好的直角纸逐个放在三个角上，让一条边对齐，看另一条边落在哪里：跑到直角纸外面的，就是比直角大的角。 例子：时钟四点整，两根针张开的角比直角大。 注意：角的边画得长或短，不影响角的大小。

bigger than a right angle = lebih besar daripada sudut tegak Place a folded right-angle paper on each of the three angles in turn, with one arm lined up, and see where the other arm falls: if it goes outside the paper, that angle is bigger than a right angle. Example: at four o'clock the clock hands open wider than a right angle. Watch out: long or short arms do not change the size of an angle.

图形记号 = tanda pada rajah 数学图形上的小记号都有固定的意思，就像地图上的符号要看图例。回想 Kenal Sudut 教学屏：画在边上的记号和画在角里面的记号，各表示什么？先看清本题的记号画在哪里，有几条边带同样的记号，再选出它的意思。 例子：交通标志上的图案要按规定来读，不能凭感觉猜。 注意：先看记号的位置，再想它的意思。

marks on a diagram = tanda pada rajah The small marks on a maths diagram have fixed meanings, just as map symbols are read with a key. Recall the Kenal Sudut teaching screens: what does a mark drawn on a side mean, and what does a mark drawn inside an angle mean? Check where the marks in this question are and how many sides carry the same mark, then choose its meaning. Example: the picture on a road sign is read by its rule, not by guessing. Watch out: notice where a mark is placed before deciding what it means.