Question

In an isosceles triangle one of the angles is 75 degrees. Find the measurement if the other 2 angles

Answer 1

${ \huge{ \fcolorbox{black}{cyan}{AnsWer}}}$

Let x,y be the rest of the angles of the triangle.

${ \huge{x+y+75=180}}$

${ \huge{x+y=180−75}}$

${ \huge{x+y=105}}$

${ \huge{x−y=35}}$

${ \huge{2x=140}}$

${ \huge{x = 70}}$

Also, 70 + y = 105

${ \huge{y=105−70}}$

${ \huge{y=35}}$