Question

Orice exercitiu m-ar ajuta
Dau coroana!

Answer 1

Salut!

1. MQ= 13,75 cm

2. AM= 4 cm

3. AD= 27 m

4.
a) coliniare
b) concurente ( secante )
c) perpendiculare
d) 90°
e) ascuțit
f) obtuz

5.
a) 3x=90°=> x=30°
b) 4x=180°=> x=45°
c) x+50°+x+50°+x+x=360° =>4x+100°=360°=>4x=260°=> x=65°
d) 40°+2x-16°+140°+x=360°=>x+180°-16°=360°=> x+164°=360°=>x=196:3=>x=65.(3)

6. m(<AOB)=15°+70°=>m(<AOB)=85°

7.
m(<DBC)=90°-66°=>m(<DBC)=24°
m(<ABE)=66°+12°=>m(<ABE)78°

8.
a) 75°+14° 12'= 89° 12 '
b) 75°-20°30'=54°30'
c) 12°43'×3= 38°09'
d) 12°43':3=4°14'20"

9.
a) 32°+x=90° => x= 58 °
b) 17°20'+x=90°=> x= 72°40'

10.
a) 44°15'+x=180°=> x=135°45'
b) 104°30'21"+x=180°=>75°29'39"

Sper că te-am ajutat !
Succes in continuare !