Question

find all the missing angle

Answer 1

http://prntscr.com/9tpk0p

Answer 2

is it the iscoceles triangle

Answer 3

yes

Answer 4

@mathmath333

Answer 5

@inkyvoyd

Answer 6

@Owlcoffee

Answer 7

remember angle sum of a triangle is 180 we know one angle is 123 and the other two are the same solve from here

Answer 8

that i know

Answer 9

so what do you think is the answer

Answer 10

but how will you find the angle

Answer 11

(180-123)/2

Answer 12

why will you do /2

Answer 13

\[(180-123)\div2\]

Answer 14

because in isosceles triangle the two base angles are the same

Answer 15

yup

Answer 16

in your picture the base angles are opposite the sides with equal signs so they are equal hence divide by 2

Answer 17

ok, 28.5

Answer 18

yup good work

Answer 19

then