Question

which of the following measures of angles can be those of isosceles triangle a 90,45 b 60 , 30 c 120,40 d 90,50​

Answer 1

Answer:

a) 90, 45

Step-by-step explanation:

If you check the options,

b) 60, 30. So, the other angle has to be 90. But if it 90, triangle won't be isosceles.

c) 120, 40. So, other angle has to be 20. But if it is 20, triangle won't be isosceles.

d) 90, 50. So, the other angle has to be 40. But if it is 40, triangle won't be isosceles.

a) 90, 45. So, the other angle has to be 45. If it is 45, the triangle will be ISOSCELES.

So, the option a is the answer.

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