Find the missing number 4 81 18 36 49 42 64 25 ?

Step-by-step explanation:

what happen you find the square root of the two number then you find their product

square root of 4=2

square root of 81= 9

hence, 9x2=18

therefore,

square root of 64= 8

square root of 25= 5

hence, 5x8= 40

giving us the next number

the correct answer is semicircle

step-by-step explanation:

the answer is semicircle because the shorter arc joining two points on the circumference of a circle is known as the minor arc, the larger arc is called the major arc, and a semicircle is a half circle, formed by cutting a whole circle along a diameter line.

hope i .

there is no question content here, but you for the free points! : d