4. Square ABCD is shown. What is the length of diagonal AC? Round to the nearest tenth, if necessary.
1 answer:
Answer:
hey! You have to use the trigonometric formula because it's a rectangle triangle:
(a^2)+(b^2)=(c^2)
(11^2)+(11^2)=(c^2)
√(242)=√(c^2)
15.56=c
So basically, the answer is D!
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