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azamat
4 years ago
9

Which biconditional is NOT a good definition ?

Mathematics
1 answer:
alexgriva [62]4 years ago
6 0

Answer:

d

Step-by-step explanation:

An angle is straight if and only if its measure is 180

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Answer:

105 squared cm

Step-by-step explanation:

Area of the shape = area of rectangle with dimensions 6 cm by 9 cm + area of trapezoid with bases 6 cm, 11 cm and height 6 cm.

= 9 \times 6 +  \frac{1}{2} (6 + 11) \times 6 \\  \\  = 54 + 17 \times 3 \\  = 54 + 51 \\  = 105 \:  {cm}^{2}  \\

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Step-by-step explanation:

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Step-by-step explanation:

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