DOL Lesson 4 Isosceles Triangles 1

Last updated almost 2 years ago

35 questions

1

Last updated almost 2 years ago

35 questions

1

0

1

0

1

X=

1

1

1

1

1

0

1

0

1

1

1

1

2x+7 = 5x-20  x= 9

2x+7 + 5x-20 = 180  x=23

2x + 7 + 130 =180  x=21

25

80

50

49

x=45 y=90 z=45

x=45 y=90 z=90

x=45 y=45 z=45

x=90 y=90 z=45

x + 78 = 75

x + 78 +x +78 +75 = 180

x+78+75+75=180

x+ 31 +30+ 30 =180

x+ 31 = 30

D

x+ 31+ x + 31 + 30=180

The base angles of an isosceles triangles are 2x+7 and 5x-20. What is the equation that will get me the value of x

2x+7 = 5x-20  x= 9

2x+7 + 5x-20 = 180  x=23

2x + 7 + 130 =180  x=21

With that value of x, what is the value of each base angle

25

80

50

49

Values for x, y, z 

x=45 y=90 z=45

x=45 y=90 z=90

x=45 y=45 z=45

x=90 y=90 z=45

What is the right equation to solve for x

x + 78 = 75

x + 78 +x +78 +75 = 180

x+78+75+75=180

What is the right equation to solve for x

x+ 31 +30+ 30 =180

x+ 31 = 30

D

x+ 31+ x + 31 + 30=180