∆ABC is a right - angled triangle in which ∆B = 90* If ∆ABD is an exterior angle of ∆ABC, find its measure.
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∆ABC is a right - angled triangle in which ∆B = 90* If ∆ABD is an exterior angle of ∆ABC, find its measure.
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Answer:
90°
Step-by-step explanation:
Theoretically, if ∆B=90° then, the sum of other two angles, ∆A and ∆C will have to be 90° By Angle Sum prop. of triangle.
Visually, the image, in other words you can also use linear pair.
Answer:
90
because
according to the question
now we solve it
so
we get
abc is 90
because ,
sum of two angle greater than third
right angle property
so we get 90
Step-by-step explanation:
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