Jada is making circular birthday invitations for her friends the diameter of he circle is 12 cm she bought 180 cm of ribbon to glue around the edges of the invitation how many did she make

she can make approximately 5 invitation cards

Step-by-step explanation:

Jada is making circular birthday invitations for her friends the diameter of he circle is 12 cm

Diameter of circle,D = 12

Circumference of the circle being made which means the distance round the circle =πD= 3.142×12=37.704 cm

she bought 180 cm of ribbon to glue around the edges of the invitation.

The number of circular birthday invitation that can made is 180/37.704

= 4.77. It cannot be a fraction because the card is a whole card

This is approximately 5 invitation cards

11) obtuse

13)right

15) acute