Select the correct answer. A wooden plank of length x is cut into 8 sections such that each section is at most meters long. What is the length of the entire plank in meters? A. x ≤ 3.2 meters B. x ≤ 20 meters C. x ≥ 10.5 meters D. x ≥ 20 meters Reset

the answer is b

moderators are

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²