Answer
2.80
Work Step by Step
For an isosceles triangle, given the base angle, $\theta$, we know that the height is:
$$h=.5btan\theta \\ h =.5(11)tan(27^{\circ})\\ h=2.80$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.