Answer:
A)9
Step-by-step explanation:
so if we see the figure the angle are vertical opposite
and so are equal ,
3x+8=35
3x=35-8
3x=27
x=27/3
x=9
hope it helps
Answer:
Area of the square pyramid = 
Step-by-step explanation:
The Surface area of the square pyramid :
Area of the four triangular faces+ Area of the square base

For triangle:

Side of the square base= 
Area of the figure is:

The area of the square pyramid is : 
ANSWER



EXPLANATION
Since line l is parallel to line m,

because the two angles are vertically opposite angles.

because the two angles are corresponding angles.

because the two angles are alternate exterior angles.