Answer fast pls pls dont spam​

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Answers 2

Step-by-step explanation:

sorry ,I don't know 2 answer ..

please mark me as brainlist.

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Answer:

see i am not knowing how to do question 20 so skipping it i will do rest of the two,

hope these two which i am answering will help you

and i am sorry for not solving all three

Step-by-step explanation:

i know i have done many cutting so for that i am leaving the solution here also

Q19.

let the angles be x

1x+2x+3x=180 (by angle sum property)

6x=180

x=180/6

x=30

1x= 30

2x=60

3x=90

Q20.

[tex]rationalising \: \frac{ \sqrt{5} }{ \sqrt{6 } + 2} [/tex]

[tex] \frac{ \sqrt{5} }{ \sqrt{6} + 2} \times \frac{ \sqrt{6} - 2}{ \sqrt{6} - 2} [/tex]

[tex] \frac{ \sqrt{30} - 2 \sqrt{5} }{ { \sqrt{6} }^{2} - {2}^{2} } [/tex]

[tex] \frac{ \sqrt{30 } - 2 \sqrt{5} }{6 - 4} = > \frac{ \sqrt{30} - 2 \sqrt{5} }{2} [/tex]

[tex]rationalising \: \frac{ \sqrt{5} }{ \sqrt{6} - 2} [/tex]

[tex] \frac{ \sqrt{5} }{ \sqrt{6} - 2} \times \frac{ \sqrt{6} - 2}{ \sqrt{6} - 2} = > \frac{ \sqrt{30} + 2 \sqrt{5} }{ { \sqrt{6} }^{2} - {2}^{2} } [/tex]

[tex] \frac{ \sqrt{30} + 2 \sqrt{5} }{6 - 4} = > \frac{ \sqrt{30} + 2 \sqrt{5} }{2} [/tex]

[tex]now \: simplifying[/tex]

[tex] \frac{ \sqrt{30} - 2 \sqrt{5} }{2} - \frac{ \sqrt{30} + 2 \sqrt{5} }{2} \\ = > \frac{ \sqrt{30} - 2 \sqrt{5} - \sqrt{30} + 2 \sqrt{5} }{2} [/tex]

[tex] \frac{1}{2} answer[/tex]

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