Question

1
Find the distance between each of the following pairs of points
T(-3, 6), R (9,- 10)​

Answer 1

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Answer 2

d(TR) = √( x2 - x1 )^2 + ( y2 - y1)^2

= √( 9 -(-3) )^2 + (-10 - 6 )^2

= √ ( 9 + 3 )^2 + ( - 16 )^2

= √ ( 12 )^2 + ( - 16)^2

=√ ( 144) + (256)

= √ 400

= 20

therefore, d(TR) = 20