Need help with this I'm so confused :(:(

Mathematics

1 answer:

leonid [27]2 years ago

7 0

Step-by-step explanation:

We know that m∠1 is 110°. If we look at m∠7 closely, we can see that while m∠1 is an obtuse angle (greater than 90° but less than 180°), m∠7 is an acute angle (less than 90°).

Now, we can eliminate 110° and 180° since we know that m∠7 is an acute angle. There are only 2 choices now: 40° or 70°.

If you flip the image around, you can see that the angle is slightly less than 90°, so it has to be 70°.

Answer:

2) 70°

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