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3 years ago

Use the Exterior Angle Theorem to find the measure of each angle.

Mathematics

1 answer:

navik [9.2K]3 years ago

7 0

Answer:

∠ C = 36°

∠ D= 81°

∠ DEC= 63°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the interior opposite angles.

∴ (11y + 4) + (5y + 1) = 117

11y + 4 + 5y + 1 = 117

16y + 5 = 117

16y = 117-5

16y = 112

y = 112÷16

y = 7

∠ C = 5×(7) + 1 = 36°

∠ D = 11×(7) + 4 = 81°

∠ DEC = 180- 117 = 63°

PLEASE MARK THIS ANSWER AS THE BRAINLIEST

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Answer:

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Step-by-step explanation:

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2 years ago

Draw a pair of supplementary adjacent angles. One of the angles should have a measure of 85 degrees. How should the supplementar

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3 years ago

Solve the following system of equations for a and for b:

viktelen [127]

Answer:

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Step-by-step explanation:

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Let's solve the second equation for a to later on replace it in the first equation.

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Muliply by the reciprocal or inverted fraction next to b.

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4 years ago

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