Question

19. The angles of a triangle are x, 2x,
3x-60 degrees. Then x =
50 degrees
40 degrees
O O O
60 degrees
O 30 degrees​

Answer 1

Step-by-step explanation:

x+2x+3x-60=180

Because sum of angles in an triangle is 180

so,

6x-60=180

6x=180-60

6x=120

x=6/120

x=20

Hope this helps

Answer 2

Answer:

♤ Given:

Angles of the triangles are given in :

= x , 2x and 3x - 60°

♤ To find:

The value of x

♤ Concept:

First , the total angle of the triangle is 180°.

So , the equation will like this :

x+2x+3x-60°=180°

♤ Calculation:

$\implies{x+2x+3x-60°=180°}$

$\implies{3x+3x-60°=180°}$

$\implies{6x-60°=180°}$

$\implies{6x=180°+60°}$

$\implies{6x=240°}$

$\implies{x=\frac{240°}{6}}$

$\implies{x=40°}$

♤ Answer:

So , the value of x is 40 degrees .

♤ Extra information:

To find area of the triangle:

$At=\frac{H×B}{2}$

Where,

At = Area of the triangle

H = Height

B = Base

To find the velocity:

$V=\frac{D}{T}$

Where,

V = Velocity

D = Displacement

T = Time

To find the acceleration:

$A=\frac{V1-V}{T}$

Where,

A = Acceleration

V1 = Final velocity

V = Initial velocity

T = Time