Question

4. Square ABCD is shown. What is the length of diagonal AC? Round to the nearest tenth, if necessary.

Answer 1

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!