Answer:
7/12
Step-by-step explanation:
63

The sector is

; there are 360 degrees in a circle.
You use the formula

.
18cm is the radius, and then you square it to get 324.
Multiply 324 by

You get 63
the answer would be 23 because 46 and 2 are both common factors of 23.
Answer:
24
Step-by-step explanation:
area of regualr trapezoid = 1/2 ( sum of parallel sides )( height)
= ( 0.5)(8+4)(4 ) =24