If a is parallel to b and c is parallel to d, which pair of angles are congruent? 1 and 8
10 and 13
5 and 9
4 and 16

Angle 1 = Angle 3

Angle 10 = Angle 12

Step-by-step explanation:

In geometry the congruent angles are the ones with the same value, due that A is parallalel with B and C is parallel with D, we can affirm the next:

Angle 1 = Angle 3 = Angle 9 = Angle 11,

Angle 2 = Angle 4 = Angle 10 = Angle 12,

Angle 5 = Angle 7 = Angle 13 = Angle 15

Angle 6 = Angle 8 = Angle 14 = Angle 16

There two options valid in the multiple choice answers

Angle 1 = Angle 3

Angle 10 = Angle 12

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.