Question

Work out the size of angle x.

Answer 1

47

Explanation:

because you know that a triangle is 180 degrees and you have the other two degrees, so all you have to do is add 90 (the little box in the corner means 90) +43=133 and subtract by 180 giving you 47 as your answer.

Answer 2

Heya! ^^

let's first look at some terms that may help us understand the concept of the question better.

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★ Angle sum property of triangle states that the sum of all the angles of a triangle equals 180°

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now let's come over what the question says.

we've been given a right angled triangle with measure of one of its angle as 43°.

we've to calculate the measure of the third angle named " x "

therefore ,

`by \: angle \: sum \: property \: of \: triangle \\ \\ 90\degree + 43\degree + x = 180\degree \\ \\ 133\degree + x = 180\degree \\ \\ x = 180\degree - 133\degree \\ \\ x = 47\degree`

thus the measure of x is 47°.

hope helpful :D