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nikklg [1K]
3 years ago
8

What is the value of x x=2.25X= 11.25x= 13x= 22

Mathematics
1 answer:
Gemiola [76]3 years ago
5 0

we know that

The sum of the internal angles of a triangle must be equal to 180 degrees

see the attached figure with letters to better understand the problem

m∠B+(6x+1)=180°-----> by supplementary angles

m∠B=179-6x

m∠A=2x+10

m∠C=79

m∠A+m∠B+m∠C=180

Substitute

(2x+10)+(179-6x)+79=180\\ -4x+268=180\\ 4x=268-180\\ 4x=88\\ x=22\ degrees

therefore

the answer is

the value of x is equal to 22\ degrees

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