1 would be a great answer
Okay. fist off don't think of them as 5 units each, but 1. so if you were to put it on graphing paper and box squares each time. you would be able to get 8 in for both sides to make a square. Area then would be 1600ft squared because 8 ×5 is 40 and 40×40 is 1600. then you calculate how many squares you used. 8×8=64. and 80-64=16 so 16 pieces are left over. then 9×9 (increasing the square) is 81. so 17 pieces to increase it.
Given:
height : 3 feet
base : 19 feet
Area of a triangle = (height * base) ÷ 2
A = (3 ft * 19 ft) ÷ 2
A = 57 ft² ÷ 2
A = 28.5 ft²
The area of the figure is 28.5 ft². Choice A.
The answer is <span>dihedral angle. It is the angle between two planes that intersected. It can be used in chemistry also in which it is the angles between two bonds and also in aerodynamics in which it is the upward angle that the wings are contacting with.</span>