Answer:
562
Step-by-step explanation:
Answer:
y = x - 4
Step-by-step explanation:
m, gradient = (5 - 3)/(9-7) = 1
Formula : x - x1 = m( y - y1 )
y - 3 = 1 ( x -7)
Equation : y = x -4
70.1 ft² of fabric is needed by Lacy to make the sail boat.
<h3>
Trigonometric ratio</h3>
Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
Let b represent the base of the triangle and h the height, hence:
sin(60) = h / 18
h = 15.6 feet
sin(30) = b / 18
b = 9 feet
The area of triangle = (1/2) * b * h = 0.5 * 9 * 15.6 = 70.1 ft²
70.1 ft² of fabric is needed by Lacy to make the sail boat.
Find out more on Trigonometric ratio at: brainly.com/question/6459892