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Mathematics, 13.10.2019 09:10 kprincess16r

1) calcule:

a) 128° 59' 59"
+ 32° 36' 48"

b) 88°
- 32° 48' 42"

c) 28° 36' 48"
× 4

d) 128° 49' 0" ÷ 4

2) calcule:

a) √- 144

b) √1024

3) diga-se (v) verdadeiro ou (f) falso:

a) um angulo obtuso é menos que 90° ( )

b) um angulo raso tem 180° ( )

c) um angulo reto tem 90° e sua bissetriz tem 45° ( )

d) a metade 20° 10' é 10° 20' ( )

4) mude as unidades:

a) 20° tem quantos minutos ( ' ) ?

b) 30' tem quantos segundos ( " ) ?

c) 3° 10' 25" tem quantos segundos ( " ) ?

5) resolva:

a) (-36) : (-12) =

b) (-24) : (+12) =

c) (+74) : (+2) =

d) (-15) : (-18) =

e) (+136) : (-5) =

ansver
Answers: 1

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You know the right answer?
1) calcule:

a) 128° 59' 59"
+ 32° 36' 48"

b) 88°
- 32° 48' 42"<...

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