QuestionFind $m \angle I S T$ if $m \angle R S T=131^{\circ}$, $m \angle I S T=11 x+1$, and $m \angle R S I=3 x+4$. $\mathrm{m} \angle I S T=$ $\square$ degrees

Studdy Solution
Substitute the value of $x$ back into the expression for $m \angle I S T$: $$m \angle I S T = 11x + 1$$ $$m \angle I S T = 11(3.142857) + 1$$ $$m \angle I S T = 34.571427 + 1$$ $$m \angle I S T = 35.571427^\circ$$
Solution: $$\mathrm{m} \angle I S T = 35.57^\circ$$ (rounded to two decimal places)