Question

If an angle is 10 degree less than its complement, find the angle.
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Answer 1

Let one be x

• Other one is x-10

ATQ

`\\ \sf \longmapsto x+x-10=90`

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

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

`\\ \sf \longmapsto 2x=100`

`\\ \sf \longmapsto x=(100)/(2)`

`\\ \sf \longmapsto x=50`

`\\ \sf \longmapsto x-10=50-10=40`