Posted by Ana on Sunday, December 5, 2010 at 3:47pm.
<D is complentary to <E and <D is supplementary to <G
If the measure of <E is 78
find the measure of <D and <G
Math - MathMate, Sunday, December 5, 2010 at 3:54pm
D+E=90 ... (1)
D+G=180 ... (2)
Solve for D from (1), and hence G from (2).
Math - Ana, Sunday, December 5, 2010 at 4:06pm
Math - MathMate, Sunday, December 5, 2010 at 5:16pm
Let's do a check:
D+E=90 => 12+78=90 OK
D+G=180 => 12+118=130 ≠ 180 ??
Let's solve for G from (2):
12-12+G = 180-12
Post if it's still not clear.
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