The area of the cross-section is 169 sq. cm.
That is the correct answer to this problem
The complete question in the attached figure
we know that
The Exterior Angle Theorem establishes that t<span>he measure of an exterior angle of a triangle equals to the sum of the measures of the two remote interior angles of the triangle.
so
the answer is the option</span><span>
A. the remote interior angles</span>
19
Step-by-step explanation:
when we add 9 and 10 we will get sum 19
It would be equal to 110 2/7