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Points A and B are plotted on the grid. What is the straight-line distance AB?

Class 8Pythagoras TheoremGeometry

A5 units
B7 units
C4 units
D25 units

Step-by-Step Solution

A is (1, 1) and

B

is (4, 5): across 3, up 4.

A B^{2} = 3^{2} + 4^{2} = 25

, so

A B = 5

. (7 is the grid path across + up.)

Answer: A) 5 units

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