Question

Find angle ptq
Find angle QTU
Find angle STU

Answer 1

consider ∆ ptq
p = 90
q = 20
the sum of all angles of a triangle is 180
p+q+t=180
90+20+t=180
t=180-110
t=70°
it is the same for the other two

Answer 2

Finding angle ptq
p=90°,q=20°
let t be x
a/q
90+20+x=180
110+x=180
x=180-110
x=70°
t=70°




stu=45°






we know t=70°
so,qtu=180-(45+70)°
qtu=180-105°
qtu=75°


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