Question

give correct answers and I'll mark you the brainlyest..​

Answer 1

Answer:

1)1

2)120

3)their sides are equal

4)50

5)a straight angle

Step-by-step explanation:

please mark me as the brainliest answer and thank my answer please please please please please

Answer 2

Step-by-step explanation:

1. Two lines will only insect only at one point.. so ans d.

2. Supplementary angles means sum is 180.

so supplementary angle to 60 is 180-60 = 120.

3. Congruent triangles means triangles with equal sides and angles.

But in question it is given that they are equilateral triangle. so we dont want to bother about sides. Sp their angles are equal . So option a.

4. In question its is clear that two sides are equal. So it is an isosceles triangle.  So two angles are equal (angles opposite to equal sides). One angle is given as 80. We know that sum of angles of a triangle is 180. So the other two angles is (180-80)÷2 = 100÷2 = 50.

so answer is option c.

5. an angle with 180 is called a straight angle  option b..

Hope this helps you....