Rewrite the definition “linear angles are supplementary” in biconditional form the angles are linear angles if and only if they are supplementary. if the angles are linear angles only if they are supplementary. if the angles are linear angles, then they are supplementary. if and only if the angles are linear angles, if and only if they are supplementary.

3.If angles are linear , then they are supplementary .

Step-by-step explanation:

We are given that a definition

''Linear angles are supplementary"'.

We have to rewrite definition in bi-conditional form

1.The angles are linear angles if and only if they are supplementary.

If given that angles are linear

Then , the angles should be supplementary.

But, if given that angles are supplementary

Then, it is not necessary that angles are linear because sum of interior angles are also supplementary.

Hence, option is false.

2.If angles are linear angles only if they are supplementary .

It is also false.Because supplementary angles need not be linear angles They can be interior angles.

Hence, option is false.

3.If angles are linear , then they are supplementary .

If the angles are linear angles then the sum is always 180 degrees and the angles should be supplementary angles.Hence, option is correct.

4.If and only  the angles are linear angles, if and only if they are supplementary.It is not correct form of statement ,hence, option is false.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3