Estimate the diamter of the sun in miles if it is 149000000

Estimate the diamter of the sun in miles if it is 149,000,000 kilometers from earth and it forms an angle of about 0.009 radian when viewed from the earth.

Solution

Here we have the rule thar length of arc = angle at center x radius

Here radius is given as 149000000 and angle at center is given as 0.009

so length of arc (or diameter of the sun) = 149000000 x 0.009 = 1341000 miles

that is last answer.