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2 years ago

Use the diagram to complete the statement. m∠ECF = degrees

Mathematics

1 answer:

alexdok [17]2 years ago

5 0

Answer:

36.86989765

Step-by-step explanation:

As Angle GBC = Angle CDF = 45, so CF = CD as it is an isosceles right triangle , then as sin(45) = 1/root(2), so CF = 12, then tan(angle ECF) = FE/CF = 9/12, then angle ECF = tan^-1 (9/12) = 36.86989765.

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To be able to simplify the following expression. We will be using the formula for the difference of two squares.

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1 year ago

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Elan Coil [88]

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2 years ago

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dlinn [17]

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Step-by-step explanation:

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1 year ago

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3 years ago

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Answer:

Step-by-step explanation:

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