1 answer:
Answer:
<em>We </em><em>know </em><em>that </em><em>the </em><em>exterior </em><em>angle </em><em>of </em><em>a </em><em>triangle </em><em>is </em><em>equal </em><em>to </em><em>the </em><em>sum </em><em>of </em><em>two </em><em>opposite</em><em> </em><em>interior </em><em>angle. </em>
Step-by-step explanation:
So
25x + 57 + x = 45x
26x + 57 = 45x
57 = 45x - 26x
19x = 57
Therefore x = 3
Hope it will help you
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I used mental math and it took a long time, but I got the answer of 2,499.
Answer:
300
Step-by-step explanation:
find the sum of area of all sides
this is your answer, i hope this helps you
The answer for number one is -3.938.
For full answer it is found on:
https://www.algebra.com/algebra/homework/Finance/Finance.faq.question.1029380.html
