Lesson 7 Isosceles Triangles

Last updated almost 2 years ago

35 Nsɛmmisa

1

Laabri

Lesson 7 Isosceles Triangles

Last updated almost 2 years ago

35 Nsɛmmisa

1

0

1

0

1

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

1

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

25

80

50

49

1

X=

1

X=

1

X=

1

X=

1

X=

1

0

X=

1

0

X=

1

X=

1

y=

1

X=

1

X=

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

X=

y=

X=

y=

Values for x, y, z

x=90 y=90 z=45

x=45 y=90 z=45

x=45 y=45 z=45

x=45 y=90 z=90

x=

What is the right equation to solve for x

x + 78 = 75

x + 78 +x +78 +75 = 180

x+78+75+75=180

x=

What is the right equation to solve for x

x+ 31 +30+ 30 =180

x+ 31+ x + 31 + 30=180

D

x+ 31 = 30