Answer:
That's an isosceles right trapezoid. The legs equal hypotenuse * (1 / sq root (2))
legs = 7 * 1 / sqroot (2)
Answer is D
Step-by-step explanation:
Answer:
If x^2 = 1, then x = 1 is NOT true because x can also be -1.
Letter B I have done this before
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Step-by-step explanation:
(8x8) + (16x16) = 64+256 = 320
√320 = 17.9