How many pounds of 65cent coffee must be mixed with 10 pounds of 90cent coffee to make a mixture worth 70 cents per pound? A
1 answer:
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Answer:
11). = 90°
12). = 212°
Step-by-step explanation:
A circle F with AB and CD are the diameters has been given in the figure attached.
11). Since, = 180°
and
Therefore, = 180°
32° + + 58° = 180°
= 180° - 90°
= 90°
12. Since, = 32°
=
= 180° + 32°
= 212°