Which of the following can prove that figure ABCD is a square?
1 answer:
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LetterA) 
(1.5 ft)(1 ft) + (2 ft)(1.5 ft) + (1 ft)(0.75 ft) + (0.75 ft) (5 ft) = 0.75 ft² + 1.5 ft² + 0.375 ft² = 6.375 ft² .........
LetterB) pyramid area: 0.75 ft² + 1.5 ft² + 0.375 ft² = 2.625 ft² ......... pyramid paint: 2 (2.625 ft²) 
= 0.12 quart ......... base area: 3.75 ft²; base paint: 2 (3.75 ft²) = 0.17 quart