20 pts and brainlist if right!! 5 stars too!

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Step-by-step explanation:

jshshevs shsbsbsabha

Corresponding Angles:

∠2 and ∠6

∠4 and ∠8

∠1 and ∠5

∠3 and ∠7

Vertical Angles:

∠2 and ∠3

∠1 and ∠4

∠5 and ∠8

∠6 and ∠7

Alt. Interior:

∠4 and ∠5

∠5 and ∠6

Alt. Exterior:

∠2 and∠7

∠1 and∠8

Step-by-step explanation:

This took me forever..

step-by-step explanation:

there's the chart

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !