Answer:
66
Step-by-step explanation:
Use the combination formula.
Given a right triangle with base, b and height, h with the angle opposide side h as θ.
The area of a triangle is given by

But,

Therefore, the area of the triangle in terms of <span>b and θ only is given by

</span>
29-11=18
18²+18²=p²
324+324=p²
p²=648
p=18√2
That's your answer.