3 years ago

Pleasee help anyone please

Mathematics

2 answers:

Yakvenalex [24]3 years ago

8 0

Answer:

x = 6

Step-by-step explanation:

72 + 64 + (4x + 20) = 180

4x + 156 = 180

4x = 180 - 156

4x = 24

x = 6

iris [78.8K]3 years ago

3 0

Answer:

x must be 14/4 = 7/2

Step-by-step explanation:

The sum of the three interior angles of a triangle must be 180 degrees.

Thus, in this particular case,

82 + 64 + 4x + 20 = 180, or

146 + 4x = 160, or

4x = 160 - 146 = 14

Then 4x = 14, and x must be 14/4 = 7/2

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