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

Question

asked Aug 13, 2018 226k views

2 Answers

CharlieP · Answer 1 · 2018-08-20T01:33:51+0000

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=

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
$22\ degrees$