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densk [106]
3 years ago
15

I need help asap pls !!!

Mathematics
2 answers:
pshichka [43]3 years ago
7 0

Answer:

100°

Step-by-step explanation:

AB = AC (given)

Therefore, ∆ ABC is an isosceles triangle.

m<B=m< C= 40°

sum of the interior angles of a triangle= 180°

m<A+40°+40°=180°

m<A = 180°-80° = 100°

True [87]3 years ago
4 0

Answer:

< A is 100

Step-by-step explanation:

<B is 40 <C is also 40

so 40+40= 80 then you have to do 180-80. Which equals 100.

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Step-by-step explanation:

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Answer:

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I feel like a complete idiot for not know this. help..please.
Serjik [45]

Answer:

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Step-by-step explanation:

You selected the right choice yay!!

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