3 years ago

Given. <1 and <2 are supplements , <3 and <4 are supplements, and <1 = <4

1 answer:

3 0

Here’s the answers , it stops at 7 in the picture but here’s 8-9

8. Statement - m<1+m2=m<3+m<1
Reason - substitution property

9. Statement - m<2 = m<3
Reason - subtraction property

10. Statement - <2=<3
Reason - definition of = angles !!

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Westkost [7]

You can use trigonometry specially the cos rule in this case. I can’t send the other pictures. But using the cos rule you can check whether the angle is 90