Page 186 - NUMINO Challenge_M1
P. 186
Type Study3. Dot Board
EEExxxeeerrrccciiissseee A line segment connects two points.
There are 6 line segments in all.
EEExxxeeerrrccciiissseee The following shows the different triangles that can be made on the dot board.
The line segments that are connected by two points are line segment AB, line
segment BC, line segment CD, and line segment DE.
A BB CC D D E
The line segments that have one point in the middle are line segment AC, line
segment BD, and line segment CE.
A B CB C EC D E
The line segments that have two points in the middle are line segment AD and
line segment BE.
A B C DB C D E
The line segment that has three points in the middle is line segment AE.
A B CD E
The total number of line segments is the sum of the number of the line
segments found in , , and .
4+3+2+1=10
49Answer Key
EEExxxeeerrrccciiissseee A line segment connects two points.
There are 6 line segments in all.
EEExxxeeerrrccciiissseee The following shows the different triangles that can be made on the dot board.
The line segments that are connected by two points are line segment AB, line
segment BC, line segment CD, and line segment DE.
A BB CC D D E
The line segments that have one point in the middle are line segment AC, line
segment BD, and line segment CE.
A B CB C EC D E
The line segments that have two points in the middle are line segment AD and
line segment BE.
A B C DB C D E
The line segment that has three points in the middle is line segment AE.
A B CD E
The total number of line segments is the sum of the number of the line
segments found in , , and .
4+3+2+1=10
49Answer Key
