Answer:
1st shape: a=60, b=120
Step-by-step explanation:
in the center of the shape, you can draw a circle. 1/6 of a circle is 60. so a is 60. to find b, add the 2 a’s (60+60) and you will get 120. the total amount of a quadrilateral is 360. so 360-120 is 240. u need to divide that by 2 and u will get 120.
i don’t know the second one :(
