I get 9 triangle with fewer than 9 lines.
Draw a square: ABCD (4 lines)
Draw the diagonals AC, BD (2 lines) which meet at X in the centre.
On a separate part of the page, draw triangle PQR (3 lines).
That is 4 + 2 + 3 = 9 lines.
The triangles are:
ABC, BCD, CDA, DAB,
AXB, BXC, CXD, DXA,
and PQR
9 triangles with 9 lines. Could have done 13 triangles with 7 lines by drawing a line from A to BC.
A line containing the point 5 9 and -5 -5 is going from the bottom left to the top right. It is a positive slope.
Each square has four corners, and each triangle has three corners. 5 squares X 4 corners/square = 20 corners 3 triangles X 3 corners/triangle = 9 corners 20 + 9 = 29 corners total.
4 - 9 = -5 One the number line . ... -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,.... On the number line , star at '4' and move '9' places (subtraction) to the left, you end up on '-5'.
You zero out the variables in turn. Y = 9(0) + 5 Y = 5 ---------- 9X + 5 = 0 9X = - 5 X = - 5/9 Can use these points to graph line. ( - 5/9, 5)
9 stupids
You can make 9 triangles but NOT rectangles.
Are you testing us? *gets paper* 9 if you dont count triangles with a line going through it 17 if you count triangles with more than one line going through it e.g all possible triangles visible
A triangular prism which will have 5 faces, 9 edges and 6 vertices
The flag of Qatar consists of a serrated line with nine points, so technically there are no triangles. If one considers each point to be a triangle extension of the solid color, then there are 19 triangles (9 white, 10 red).
It is a triangular prism that has 5 faces (2 of which are triangles), 9 edges and 6 vertices
27. that is, if the triangles are not connected.
You can make 5 triangles out of 9 toothpicks. With 6 toothpicks, make a large triangle with 2 toothpicks for each side. Now, take individual toothpicks, and make a smaller triangle inside the larger one by joining the midpoints of the sides of the previous triangle. (The vertices of the smaller triangle are the midpoints of the sides of the larger one).
9-2 = 7 triangles
There are 9 triangles in an 11 sided shape
A line containing the point 5 9 and -5 -5 is going from the bottom left to the top right. It is a positive slope.
It has 9 edges, 5 faces and 6 vertices
A pentagon is a shape with five corners and five equal sides. A pentagon can be divided into five equal triangles. A pentagram is a pentagon with five triangles drawn on each side, forming a star.