I would suggest factoring using the grouping method. The answer I got was (2n-1)(n+2)
<em>Hello there, and thank you for asking your question here on brainly.
<u>Answer: The three different types of angles are an acute angle, which is an angle that is an angle that measures from 1</u></em>° <em><u>to 89°. A right angle, that specifically measures to 90</u></em>°. <em><u>Finally, an obtuse angle that measures from 91° to 179°. An angle that also measures 180° is a straight line, and is called a straight angle.
</u>Hope this helped you! ♥<u>
</u></em>
Answer:
10
Step-by-step explanation:
The ratio of abc/def=1.5
15/1.5=10
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Is it 57? ...............................
