Question

I need help on this question 20 points

Answer 1

k = 73

The sum of the angles in a triangle is 180°

sum the 2 given angles and subtract from 180 for k

k = 180 - (62 + 45 ) = 180 - 107 = 73

Answer 2

a polygon with three side is called triangle.

we know sum of all angle of triangle is
`180^(\circ)`

here we are given three angles are

`45^(\circ)62^(\circ)k^(\circ)`

this implis

`45^(\circ)\dotplus 62^(\circ)\dotplus k^(\circ)=180^(\circ) now107^(\circ)+k^(\circ)=180^(\circ)this impliesk^(\circ)=180^(\circ)-107^(\circ)=73^(\circ)`

hence the required angle
`k^(\circ)=73^(\circ)`