The exterior angle of a ∆ measures 145 degree. If the interior opposite angles
Are in the ratio 2:3, determine all the angles of the ∆?
Answers
Answered by
164
Answer:
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
Hence
angle A = angle B = 70
Answered by
3
Answer:
Step-by-step explanation:
by exterior angle property
145=2x+3x
145=5x
145/5=x
29=x
2x=29*2
=58
3x=29*3
=87
by angle sum property
180=58+87+x
180-145=x
35=x
so
angle 1=58
angle 2= 87
angle 3=35
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