Question

Which of the following options is incorrect?

a) ∠ 1 < ∠ 3

b) ∠ 1 + ∠ 4 + ∠ 5 = 180°

c) ∠ 8 = ∠ 6

d) ∠ 1 + ∠ 3 = 180°

Answer 1

Option (a) ∠1 < ∠3 is incorrect as ∠1 is not smaller than ∠3.

Step-by-step explanation:

The incorrect option is option (a) ∠1 < ∠3.

When we compare angles, we use the symbol (<) to represent 'less than.' So, if angle ∠1 is smaller than angle ∠3, we write it as ∠1 < ∠3.

Therefore, the correct statement would be ∠1 > ∠3, making option (a) incorrect.