yanicas
16.01.2021 •
Mathematics
Find the perimeter
x+2
3x-8
7x (the small 2 at the top of x) +1
Solved
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Ответ:
9. the measure of DEF is 103°
10. the measure of DEG is 77°
11. 90°
Step-by-step explanation:
it's pretty simple, just take into consideration that the final measure of all the angles of a triangle must be 180°