pls ans these question as soon as possible
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luthfur069:
do u want full answer
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Answered by
1
1) 4x+2x=180° (on a straight line)
,6x=180°
x=30°
2) Given a-b= 80°
a+b=180° (on a straight line)
Simultaneous equation-
a-b=80
a+b=180
-------------
2a= 260
a=130°
a-b=80
130-b=80
-b=80-130
b=50°
3) 5y+2y+3y= 180°
10y=180
y=18°
4) 6x+30+4x=180
10x=150°
x=15°
5) As x=45°
z=45° (Vertically opposite)
x+u=180
45+u=180
U=135°
Similarly, y=135°
Blah Blah
-MissBlahBlah
,6x=180°
x=30°
2) Given a-b= 80°
a+b=180° (on a straight line)
Simultaneous equation-
a-b=80
a+b=180
-------------
2a= 260
a=130°
a-b=80
130-b=80
-b=80-130
b=50°
3) 5y+2y+3y= 180°
10y=180
y=18°
4) 6x+30+4x=180
10x=150°
x=15°
5) As x=45°
z=45° (Vertically opposite)
x+u=180
45+u=180
U=135°
Similarly, y=135°
Blah Blah
-MissBlahBlah
Answered by
1
1. 4x + 2x = 90
6x = 90
x= 15
2. this is a simultaneous equation.
a+b=90
a-b=80
a= 90-b ---(1)
90-b-b= 80
-2b= -10
b= 5
a= 90-5
a= 85
3. 5y+3y+2y=90
10y=90
y=9
4. 6x+40 + 4x = 90
10x= 50
x=5.
5. if x= 45, z= 45
and y=u
y+x+u+z= 360
y+u+45+45 =360
y+y+90=360 (because y=u)
2y=270
y=135
x=45
y=135
u=135
z=45
6x = 90
x= 15
2. this is a simultaneous equation.
a+b=90
a-b=80
a= 90-b ---(1)
90-b-b= 80
-2b= -10
b= 5
a= 90-5
a= 85
3. 5y+3y+2y=90
10y=90
y=9
4. 6x+40 + 4x = 90
10x= 50
x=5.
5. if x= 45, z= 45
and y=u
y+x+u+z= 360
y+u+45+45 =360
y+y+90=360 (because y=u)
2y=270
y=135
x=45
y=135
u=135
z=45
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