Question

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Answer 1

Answer:

Hey user

here ur answer✓

2) b.Let the base angles be x.

Therefore,

x+x+40°

=180°

[Given]

2x=180°

−40°

2x=140°

x=70°

Hence,

The base angles of the triangle are 70

Answer 2

Answer:

1.

2x + 7= 87

2x=80

x=80/2=40

ʜᴇɴᴄᴇ ᴛʜᴇ ʟᴏᴡᴇsᴛ ᴍᴀʀᴋs ɪs 40

2.

40+ 2x= 180

2x=180-40

x=140/2

x= 70

ʜᴇɴᴄᴇ ᴛʜᴇ ʙᴀsᴇ ᴀɴɢʟᴇs ᴀʀᴇ 70 ᴅᴇɢʀᴇᴇ ᴇᴀᴄʜ.