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Need help on 15 & 16!

Need help on 15 & 16!-example-1

1 Answer

1 vote
15.
if <A = 84° then

4x + 18 = 42

4x = 24

x = 6
if x = 6 then..

7x + 4 = 7(6) + 4

m < r = 7(6) + 4

m < r = 42 + 4

m < r = 46

I can't see enough of 16 to help on that one
User Tobias Dekker
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