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Mathematics 11 Online
OpenStudy (anonymous):

help please Find m∠A.

OpenStudy (anonymous):

OpenStudy (anonymous):

ganeshie8 (ganeshie8):

use the formula :- external angle = (far arc - near arc) / 2

ganeshie8 (ganeshie8):

= (DE - BC)/2

ganeshie8 (ganeshie8):

= (106-62)/2 = ?

OpenStudy (anonymous):

22?

ganeshie8 (ganeshie8):

thats right ! for these problems, u just have to recognize wats far arc and wats near arc.. thats all :)

OpenStudy (anonymous):

thanks so much

ganeshie8 (ganeshie8):

np :)

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