Question

3. The sum of the interior angle of a triangle is____.

A. 1800
B. 3600
C. 1200
D. 900
4. A regular quadrilateral is a___.
B. rhombus
B. rectangle
C. square
D. triangle
5. A star is an example of a_____ polygon.
A.convex
B. equilateral
C. equiangular
D. triangle
D. concave​

Answer 1

3ans) C.360⁰

4ans) C.square

5ans) D.concave

hope it helped you

Answer 2

3. 180°

4. square

5. concave