Question

please answer this question​

Answer 1

$\huge\bf\underbrace{\pink{A}\orange{n}\blue{s}\red{w}\green{e}\purple{r}}$

$We \: know, \: two \: angles \: are \: complement\: \\ when \: they \: add \: up \: to  \: = 90$

$Given, \: measure \: of \: one \: \\ complement \: angle \: is 20o.$

$⇒ Measure \: of \: other \: \: complement \: \\ angle =90o−20o =70o.$

$∴ Measure \: of \: a \: complementary \: \\ angle \: of 20o=70o.$