Q:

Please help I have been stuck on these two for two days now!!!1. angleEFG and angleGFH are a linear​ pair, mangleEFG=3n+21​, and mangleGFH=2n+34. What are mangleEFG and mangle​GFH?2.In the​ diagram below, mangleACB=68. Find mangleBCD.

Accepted Solution

A:
First of all you should demand your teachers stop teaching you algebra in geometry class.   1Linear pairs (and this is the geometry part) are angles that add to 180 degrees, supplementary angles formed by two lines crossing.3n + 21 + 2n + 34 = 1805n + 55 = 1805n = 125n = 25mEFG = 3n + 21 = 96 degreesmCFH = 2n + 34 = 84 degreesThese are indeed supplements, adding to 180 degrees.2ACD is a right angle because it makes a linear pair along DF with another right angle.SomACB + mBCD = 90 degreesmBCD = 90 - mACB = 90 - 68mBCD = 22 degrees