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3 years ago

Help I don’t understand this

Mathematics

1 answer:

Ganezh [65]3 years ago

5 0

Answer:

Step-by-step explanation:

they are opposite angles, so we put them equal to each other.

25.

6a+10= 130

6a=120 a=20 so now we plug it in 6(20) +10= 130

26. 4a-4=2a+30

2a=34 a=17 sso now we plug in 4(17)-4= 64 2(17)+30= 64

27. 6y+1=4y+9 2x-5=x+7

2y=8 x=2

y=4

now plug in 6(4)+1=25 4(4)+9=25 2(2)-5= -1 (2)+7=9

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What is the measure for the following ∠? m∠EOD 20 120 140

Eddi Din [679]

Answer:

Part 1) m∠EOD=20°

Part 2) m∠AOD=80°

Step-by-step explanation:

Part 1) Find the measure of angle EOD

we know that °

m∠EOD=m∠EOX-m∠DOX

we have

Observing the figure

m∠EOX=140°

m∠DOX=120°

substitute

m∠EOD=140°-120°=20°

Part 2) Find the measure of angle AOD

we know that °

m∠AOD=m∠DOX-m∠AOX

we have

Observing the figure

m∠AOX=40°

m∠DOX=120°

substitute

m∠AOD=120°-40°=80°

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Sever21 [200]

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Answer:

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Step-by-step explanation:

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