Question

please find answers ​

Answer 1

(1) a² + b² + 2ab

(2) a² + b² - 2ab

(3) a² - b²

(4) 2πr

(5) 1/100

(6) 25/2 = 12.5

(7) (perpendicular)² + (base)²

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Answer 2

1.

${a }^{2} + {b}^{2} + 2ab \\ {a}^{2} + {b}^{2} - 2ab \\ 2\pi \times r \\ p \times r \times t \\ \frac{25}{2} \\ {p}^{2} + {b}^{2}$

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