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3 years ago

Please heeeeeeeeelp! Ill give brainliest!

Mathematics

2 answers:

Alinara [238K]3 years ago

8 0

Step-by-step explanation:

ok so as u know the angles of a triangle add up to 180.

So we will be using that for help.

S+R+T=180

12x+13x+12x-4+2-3=180

37x-5=180

37x=185

x=5

Now we will plug in the value for x to find each angle

S= 13(5)-4

=61

T=12(5)-3

=57

R=12(5)+2

=62

Hope this helped:)

jok3333 [9.3K]3 years ago

5 0

Answer:

62,57,61

Step-by-step explanation:

(12x +2) + (12x-3 ) + (13x-4) = 180

37x = 180 -2 +3+4

37x = 185

x = 185/37 = 5

One angle =(12x +2) = 62

Second angle =(12x-3 ) = 57

Third angle = (13x-4) = 61

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Answer:

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Step-by-step explanation:

GIVEN :-

Co-ordinates of one endpoint = (-4 , -10)
Co-ordinates of the midpoint = (-8 , -4)

TO FIND :-

Co-ordinates of another endpoint.

FACTS TO KNOW BEFORE SOLVING :-

Section Formula :-

Let AB be a line segment where co-ordinates of A = (x¹ , y¹) and co-ordinates of B = (x² , y²). Let P be the midpoint of AB . So , by using section formula , the co-ordinates of P =

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PROCEDURE :-

Let the co-ordinates of another endpoint be (x , y)

So ,

$(-8 , -4) = (\frac{-4 + x}{2} , \frac{-10 + y}{2} )$

First , lets solve for x.

$=> \frac{x - 4}{2} = -8$

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Now , lets solve for y.

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