Question

in a right angled triangle,if one acute angle is half the other,then the smallest angle is (a)15 degree (b) 25 degree (c)30 degree (d)35 degree

Answer 1

let one angle = x
second angle=x/2
third angle =90
sum of the angles in a triangle is 180degree
x+x/2+90=180
3x/2=90
x=90*2/3
x=30*2
x=60
the smallest angle=x/2=60/2=30 degrees

Answer 2

Step-by-step explanation:

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