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October 20, 2014

October 20, 2014

Posted by **JOHN** on Tuesday, November 30, 2010 at 4:44pm.

- geometry -
**Henry**, Thursday, December 2, 2010 at 2:16amThe opposite angles of a rhombus are equal, and the sum of the angles = 360 deg. Theefore, we have two 40-deg angles and the other 2 are also equal.

360 - (40 + 40) = 280 = sum of other 2

angles.

280 / 2 = 140 = measure of each of the

other 2 angles.

At = 40 + 40 +140 + 140 = 360.

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