The angles of a triangle are 5(x-1), 3(2x-5) and 9x. Find x and name the triangle.
plzzz ans fast...
gaurav2882:
sum of three angel= 180..ans Aa jayga..
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Answered by
12
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°•° We know that
sum of Angles of ∆ = 180°
5(x-1) + 3(2x-5) + 9x = 180°
5x - 5 + 6x -15+ 9x = 180°
20x -20 = 180°
20x= 180+20
20x = 200
x = 200/20
•°• x = 10
======================
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==========================
°•° We know that
sum of Angles of ∆ = 180°
5(x-1) + 3(2x-5) + 9x = 180°
5x - 5 + 6x -15+ 9x = 180°
20x -20 = 180°
20x= 180+20
20x = 200
x = 200/20
•°• x = 10
======================
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ✌️✌️
☺️☺️☺️
Answered by
9
Hey mate here is your answer
We know that the sum of angles of a triangle is 180 degree
So
5(x-1)+3(2x-5)+9x=180
5x-5+6x-15+9x=180
20x-20=180
20x=200
x=10
Putting value of x
First angle=5(10-1)=45 degree
Second angle=3(2×10-5)=45 degree
Third angle =9×10=90 degree
Hope it will help you
We know that the sum of angles of a triangle is 180 degree
So
5(x-1)+3(2x-5)+9x=180
5x-5+6x-15+9x=180
20x-20=180
20x=200
x=10
Putting value of x
First angle=5(10-1)=45 degree
Second angle=3(2×10-5)=45 degree
Third angle =9×10=90 degree
Hope it will help you
it is not full answer the question also asked which triangle is made it is right angled triangle
Yes dear its right angle triangle.
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