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MArishka [77]
3 years ago
9

Find the missing angle. 40° 80° X What is the missing angle?

Mathematics
1 answer:
Natali5045456 [20]3 years ago
6 0

Answer:

60°

Step-by-step explanation:

Sum of angles of triangle = 180°

x + 40 + 80 = 180

      x + 120 = 180     {Subtract 80 from both sides}

                x = 180 - 120

                x = 60°

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Step-by-step explanation:

The formula for calculate the circumference of a circle is:

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Solve for <em>r</em> from A=r^2\pi to calculate it:

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3 years ago
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