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Writing Patterns in Geometry

Question 15Th...

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Question 15

The perimeter of the triangle shown in the figure below is:

(a) 2x + y

(b) x + 2y

(c) x + y

(d) 2x - y

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Solution

Option (a).

Perimeter is defined as the total sum of length of all the bounding sides of a planar object.

Length of sides of the given triangle are x, x and y.

Hence, the perimeter of the triangle = x + x + y = 2x + y

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Question 15

The perimeter of the triangle shown in the figure below is:

(a) 2x + y

(b) x + 2y

(c) x + y

(d) 2x - y

Which of the following is correct unchanging relation of perimeter of rectangle with length x and breadth as y?

Q. The inverse of function

y = \frac{2^{x}}{1 + 2^{x}}

Q. Question 15
The coordinates of the point which is equivalent from the three vertices of the

△ A O B

shown in the figure, is

(x, y)

(y, x)

(\frac{x}{2}, \frac{y}{2})

(\frac{y}{2}, \frac{x}{2})

tan α = \frac{1}{\sqrt{x (x^{2} + x + 1)}}, tan β = \frac{\sqrt{x}}{\sqrt{x^{2} + x + 1}}

tan γ = \sqrt{x^{- 3} + x^{- 2} + x^{- 1}}

x \neq 0

α + β

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Writing Patterns in Geometry

Standard VI Mathematics

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