Find the radian measure of the central angle of circle with radius 1 yards that intercepts an arc of length 4 yards.

The circumference of the circle is given by pi diameter  so we have pi*2 for 1 circumference . the portion of 2*pi circumference for the whole circle for this arc is (4/2*pi).

The total angular measure of the circle is also 2*pi(or 360 degree)

So, we the measure radian of the angle is ((4/(2*pi))*(2*pi)

= 4 radians      

false

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.