SOLUTION: A rectangle has a diagonal length of 7 cm and a width of 3 cm. What's the area (in simplified radical form).

SOLUTION: A rectangle has a diagonal length of 7 cm and a width of 3 cm. What's the area (in simplified radical form).

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Question 447528: A rectangle has a diagonal length of 7 cm and a width of 3 cm. What's the area (in simplified radical form).
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
7^2-3^2=L^2
49-9=L^2
L=√40=√4√10=2√10
Area=3x2√10=6√10..
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