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Xiaosheng drew four points on the paper. If the four points were connected to form a figure, how many triangles would there be in the figure? Please draw a picture to explain
(1) When four points have two points in a straight line, connect the four points to form a quadrilateral. As shown in the figure, the number of triangles divided by the two diagonals of the quadrilateral is: 4, 1 and 2, 2 and 3, 3 and 4, 4 and 1. The number of triangles formed by each two small triangles is
Xiaosheng drew four points on the paper. If the four points were connected to form a figure, how many triangles would there be in the figure? Please draw a picture to explain
(1) When four points have two points in a straight line, connect the four points to form a quadrilateral. As shown in the figure, the number of triangles divided by the two diagonals of the quadrilateral is: 4, 1 and 2, 2 and 3, 3 and 4, 4 and 1. The number of triangles formed by each two small triangles is
Fill 10.15.20.30., 40, 60 in the triangle so that the product of three numbers on each side of the triangle is equal?
Thank you. The picture hasn't been drawn. I didn't make it clear. For triangles, three numbers should be filled in one side, that is, three corners and three numbers, and one number should be filled in the middle of the three sides. I can't draw the picture above. I don't know if I can make it clear
10 60 20
30 15
forty
As shown above
10, 20, 40 at the top
15, 30 and 60 are on the midpoint respectively
10*60*20=10*30*40=20*15*40=12000
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