Question

Find the length of ĀB.

A. About 3.6 units
B. 89 units
C. 13 units
D. About 9.4 units

Answer 1

Answer:

D. About 9.4 units

Step-by-step explanation:

$ab = \sqrt{ {(9 - 4)}^{2} + {(10 - 2)}^{2} } \\ ab = \sqrt{ {(5)}^{2} + {(8)}^{2} } \\ ab = \sqrt{25 + 64} \\ ab = \sqrt{89} \\ ab = 9.43398 \: units$