A quadrilateral has angles that measure 56°, 97°, and 136°. What is the measure of the fourth angle?
1 answer:
The quadrilateral adds up to 360 degrees.
the 3 angles given add up to 289 degrees.
subtract the 3 given from 360
360 - 289
71 degrees.
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V = 1/3* h * r^3 pi
V ' = 1/3* h/3* (2r)^3 pi = h/9 * 8r^3 * pi
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