What is the value of x? 20 40 45 85

asked Feb 15, 2022 211k views

5 votes

What is the value of x?

20

40

45

85

6.4k points

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2 votes

Complementary angles have sum 90°

$\\ \sf\longmapsto 2x+10=90$

$\\ \sf\longmapsto 2x=90-10$

$\\ \sf\longmapsto 2x=80$

$\\ \sf\longmapsto x=40$

Quixrick answered Feb 18, 2022

6.3k points

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