Find Angle BAG: Complex Geometry with 90°, 95°, and 55° Angles

Question

It is known that angles A and D are equal to 90 degrees

Angle DEB is equal to 95 degrees

Angle BCE is equal to 55 degrees

Complete the value of angle BAG based on the data from the figure.

505050404040505050707070AAABBBCCCDDDEEEFFFGGG3025

Video Solution

Solution Steps

00:00 Find angle BAG
00:09 Angle A between points B and G
00:15 The entire angle equals the sum of its parts
00:35 Let's substitute the angle values and solve for angle BAG
00:51 Let's isolate angle BAG
01:03 And this is the solution to the question

Step-by-Step Solution

Note that angle BAG is part of angle BAD.

Therefore, we can write the following equation:

BAG+GAD=BAD BAG+GAD=BAD

From the data given in the question, we know that angle A is equal to 90 degrees, and angle GAD is equal to 50.

Let's substitute the known values into the formula:

BAG+50=90 BAG+50=90

We'll move terms to one side and maintain the appropriate sign:

BAG=9050 BAG=90-50

BAG=40 BAG=40

Answer

40