The top surface of his living room is a rectangle, and a light should be installed every 2 meters ar

None of this? m (total length divided by 2) to know how long one side is. 2 points are out, meters divided by 2 meters of half warp to draw) (don't know how to draw, I'll teach you, 2 2 meters long straight wooden strips together, and then find 4 points of the ellipse (to divide yourself) and draw, or use a rope to draw. >>>More

The rectangular living room and dining room should be decorated according to the following points to look good: >>>More

6*6=36 (square meters) 72*3=216 (square meters) 216 36=6 (blocks).

It's easy ha.

Circumference = (630 + 330) * 2 = 1920cm >>>More

First, find the total area as 630 times 330 equals 20790

Then since the decorative strip is 15 cm wide bai, du and all four sides have to be pasted, so the length dao should be subtracted from two 15 cm. The width should also be subtracted by two 15 centimeters, and the length obtained after cutting is multiplied by the width to get the area without stickers, that is, 600 times 300 equals 180,000 >>>More