Create a new blank slide, and then click: Insert; Next, insert the shape.

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From open panels of various shapes, we find rectangles with missing corners. Some friends may not know which rectangle is missing. Let's take a look at the arrow in the picture below.

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Mark the missing rectangle, and then draw the missing rectangle in the slide. You can't draw at will.

Draw a rectangle with a missing corner.

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You can't draw a rectangle with four corners. All the corners are pointed.

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We need to press the SHIFT key and draw a square with missing corners, so that we can make a four-pointed star with four corners pointed.

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Let's look at the chart again. There is a yellow square. This is the key.

Click the mouse on this square.

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Hold on, don't let go, pull to the right, pull to the end. At this time, we can see that all four corners are sharp.

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