A rectangle is a two-dimensional shape where the length and width are different.
The area of a rectangle is given as:
Area = Length x width
The area of the rectangle is 200 square feet.
A rectangle is a two-dimensional shape where the length and width are different.
The area of a rectangle is given as:
Area = Length x width
We have,
Length of the rectangle = 25 feet
Width = 8 feet
The area of the rectangle.
= length x width
= 25 x 8
= 200 square feet
Thus,
The area of the rectangle is 200 square feet.
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The area of this triangle with three vertices (x₁, y₁) , (x₂, y₂) and (x₃, y₃) is,
A = 1/2 [[(x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂))]
We have to give that,
The three vertices of the triangle are,
(x₁, y₁) , (x₂, y₂) and (x₃, y₃)
Since a triangle is a three-sided polygon, which has three vertices and three angles it has the sum of 180 degrees.
Hence,
The area of this triangle with three vertices (x₁, y₁) , (x₂, y₂) and (x₃, y₃) is,
A = 1/2 [[(x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂))]
So, the Formula is,
A = 1/2 [[(x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂))]
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{3, 4, 6, 7, 9}
{3, 4, 5, 6, 8, 9}
{2, 4, 6, 8}
Answer:34679
Step-by-step explanation:
Answer:
Step-by-step explanation:
a(n) = n² - 3n - a(n-1) and a(1) = 4
We have a(1) = 4 and want a(2) (for which n = 2).
a(2) = 2² - 3(2) - a(2-1) → a(2) = 4 - 6 - 4 = -6 = a(2)
a(3) = 3² - 3(3) - (-6) = 9 - 9 + 6 = 6 = a(3)
a(4) = 4² - 3(4) - 6 = 16 - 12 - 6 = -2 = a(4)
a(5) = 5² - 3(5) + 2 = 12 = a(5)