Answer:
189
Step-by-step explanation:
The pyramid has four triangular faces and a square base.
The area of a triangle is half its base times its height. The base of each triangle is 7, and the height of each triangle is 10. So the area of each triangle is A = ½ (7) (10) = 35.
The area of a square is the side length squared. The side of the square is 7. So the area of the square is A = (7)² = 49.
The total surface area is:
A = 4(35) + 49
A = 189
I think it is B using pyth. Theorem
V = by
Solve for b.
Divide both sides by y to isolate b.
b=
None of the above are equivalent to -6(b+2)+8
Solution:
2/3=0.66
3/6=0.5
5/9=0.55
0.66+0.5+0.55=1.71
