Question

13. Write the common difference of AP :-5, -1,3,7
14. All
triangles are similar. (equilateral/isosd​

Answer 1

Answer:

13.

Solution : t¹ = -5

t² = -1

t³ = 3

t⁴ = 7

Common difference (d) = (-1)-(-5) = 4

Common difference 4

14.

All angles of a triangle are similar then it is equilateral triangle.