What's the rotation direction of the typhoon
Due to the geostrophic bias force, that is, Coriolis force, typhoons in the northern hemisphere rotate counterclockwise, while typhoons in the southern hemisphere rotate clockwise. There is no typhoon at the equator, because typhoons cannot form near the equator
How to write the number 0? Clockwise or counter clockwise?
Anticlockwise, write from top to bottom, but still according to your own habits. You can write as you like
Is the Pinyin letter "O" written clockwise or counterclockwise?
Counter clockwise
Is it clockwise or counterclockwise
Up north, down south, left West, right east... Clockwise
The coefficient of similarity ratio of two similar triangles is k = 2. If the difference between their girths is 4cm, then the girths of these two similar triangles are -——
4cm 8cm
The similarity ratio is the perimeter ratio
What should we pay attention to? The relationship between the similarity ratio of Acacia triangle and the corresponding midline?
Anyway, it's about the perimeter and area of similar triangles
The ratio of the circumference, the ratio of the middle line, the ratio of the height and the ratio of the angle bisector of similar triangles are equal to the similar ratio
The area ratio of a similar triangle is equal to the square of the similar ratio
Perimeter, area and volume of similar triangles
Xiaoming helps his mother to buy fish in the market. There is a kind of fish in the main building. They all look similar. Two kinds of fish of different sizes have different prices. Each fish is 10 yuan for a 10 cm long fish and 15 yuan for a 13 cm long fish;
10*13/10*10
It is proved that the perimeter ratio of similar triangles is equal to the similarity ratio
It is proved that: two triangles are similar, so the corresponding edges are proportional, which is expressed as: AB / a'B '= BC / b'c' = Ca / c'a '= K (k is the similarity ratio). According to the property of equivalence ratio, it is obtained that: (AB + BC + CA) / (a'B' + b'c '+ c'a') = K. therefore, the perimeter ratio of similar triangles is equal to the ratio of corresponding edges
The ratio of similar triangles to heights, to midlines and to bisectors is equal to______ The perimeter ratio of similar triangles is equal to______ The area ratio of similar triangles is equal to______ .
The ratio of height, midline and bisector of angles of similar triangles is equal to the similar ratio; the ratio of perimeter of similar triangles is equal to the similar ratio; the ratio of area of similar triangles is equal to the square of the similar ratio
Similar triangle correspondence______ 、______ 、______ All the ratios are equal to the similarity ratio
The similarity ratio of a similar triangle is equal to the ratio of its height, the ratio of its central line, the ratio of its angular bisector, and the ratio of its perimeter