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melamori03 [73]
1 year ago
8

Can someone explain this to me? I'm not entirely sure this question has enough information to be solved. Thanks!

Mathematics
1 answer:
dedylja [7]1 year ago
8 0

<u>Question</u><u> </u><u>1</u>

DC=AC-AD=20-16=4

<u>Question</u><u> </u><u>2</u>

By the geometric mean theorem,

BD^2 = (4)(16)=64 \\ \\ BD=8

<u>Question</u><u> </u><u>3</u>

By the Pythagorean theorem,

AB^2 = 8^2 + 16^2 \\ \\ AB^2 = 320 \\ \\ AB=8\sqrt{5}

<u>Question</u><u> </u><u>4</u>

By the Pythagorean theorem,

BC^2 = 8^2 +4^2 \\ \\ BC^2 = 80 \\ \\ BC=4\sqrt{5}

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