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tiwaribianca475
28.11.2020 •
Mathematics
I NEED HELP on THESE QUESTIONS EXCEPT ONE. Only do 2 and 3
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Ответ:
201° and 60°
Step-by-step explanation:
(2)
∠ FHG =
( arc ES + arc FG ), that is
128° =
( 55 + FG ) ← multiply both sides by 2
256° = 55° + FG ( subtract 55° from both sides )
201° = major arc FG
(3)
The measure of the secant- tangent angle FTS is half the difference of the intercepted arcs, that is
∠ T =
( arc FS - arc US )
=
(170 - 50)°
=
× 120°
= 60°
Ответ: