The circle's area is 88.74<span>
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A- 68 the time it takes for the water to rise.
B- $300 the money she gets
Answer:
The value of a = 14
Step-by-step explanation:
Given
(x₁, y₁) = (2, 4)
(x₂, y₂) = (6, a)
(x₃, y₃) = (-1, 1)
A = 9 sq.units
Area of a triangle with vertices (x₁, y₁), (x₂, y₂), and (x₃, y₃) is:

substituting the values (x₁, y₁) = (2, 4), (x₂, y₂) = (6, a), (x₃, y₃) = (-1, 1), A = 9 in th formula


Multiply both sides by 2

simplify

As the area is always positive.
so


Add 18 to both sides

simplify



Divide both sides by 3


Thus, the value of a = 14
Answer:
maths/hindi
Step-by-step explanation:
Step-by-step explanation:
Sum of the interior angles is (180)(8-2)=1080.
so 119+140+124+6x+132+132+102+6x=1080
from here just solve for x