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Anna35 [415]
4 years ago
12

Convert theta = 3pi/4 to rectangular form

Mathematics
2 answers:
Salsk061 [2.6K]4 years ago
8 0
Ф = 3π/4. Transform it into Rectangular (or Cartesian) form .

The coordinates of Ф are x ,y  in rectangular form ==> so:

tan(Ф) = y/x and y=x . tan(Ф) ==> y= x. tan(3π/4). we know that tan(3π/4)= - 1

Hence y = - x
sashaice [31]4 years ago
3 0

Answer:

Here,

Theta is Replaced by Angle A.

A=\frac{3\pi }{4}

Suppose any point on the two dimensional coordinate plane is (r,A).

Where A is angle made by line with positive direction of x axis and r is distance from Origin to that point.

Projection of point on X and Y axis  and then converting to Rectangular form

x=r Cos A, y=r Sin A\\\\ \frac{y}{x}=\frac{Sin A}{CosA}\\\\ y= x tan A\\\\ y=x* tan{\frac{3\pi}{4}

y=x \times (-1)\\\\ y=-x

→y= - x

is representation in Rectangular form of theta=\frac{3\pi }{4}

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3 years ago
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Leto [7]
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Well, in terms of congruency, you have about 8 different ways, I only remember 4.
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This means that whichever it is, each must be identified as congruent to the other. If it's SAS, you must know, for certain (not you personally, you can guess, but that's not what they want, they want you to know based on the info they give you) that there are 2 sides that are congruent, and 1 angle that are congruent. Same for all the others, just plug and play. 

In the text, this question mentions that side HJ is congruently equal to JL. This means you have 1 set of sides identified as congruent. 
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4 years ago
Find the measure of one interior angle in each regular polygon. Round your to nearest tenth if necessary.
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<u>Step-by-step explanation:</u>

A regular polygon refers to a multi-sided convex figure where all the sides are equal in length and all the angles have equal degree measures.

The triangle has 3 interior angles of  60  degrees

The square has 4 interior angles of  90  degrees.

The pentagon has 5 interior angles of  108  degrees  .

The formula for the interior angle of a regular polygon is given by,

                            ( n − 2 ) 180  /  n

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Answer:

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