Question

The measure of the angle indicated

Answer 1

Here is a photo of the work and some explanation

Answer 2

I hope this helps you




11) 39+93+?'=180 ?'= 48

?+70= 48+62

?=110-70 ?=40



13) 50+55=?+80


?= 25


15) 30+60+?'=180 ?'=90


20+?=60+?'


20+?=60+90


?= 130