Do you think possible to use indirect measurements with shadows if the sun is directly overhead?

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Select all of the following expressions that are equal to 2.5.