Question

Q.3)In a right angled triangle, if the measure of one acute angle is 72 degree,then
the other angles are
(b)18°,80°
(a)18° 90°
(c)8°,100
(d)18°,100​

Answer 1

Answer:

In a right angle , measure of one angle is 90°.

Here it is given that measure of one of the acute angle is 72°

let the remaining third angle be x°

By the angle sum property ,

Sum of all angles = 180°

Therefore ,

90+72+x = 180

162 + x = 180

x = 180-162

x = 18

Therefore , option 18,90 is correct

Answer 2

Answer:

=the right angle =90°

= let the other angle be x

= 90°+72°+x=180°

=162°+x. = 180°

=x. = 180°-162°

=x. = 18°

so, your answer is option a) 18°,90°.

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