A circle has a diameter of 10 millimeters. What is the area of the circle? (a) 25 square mm

(b) 25 square mm

(c) 100 square mm

(d) 100 square mm

Me with this one question, and i'll upvote the brainliest answer

Need on this geometry question. explain how you did it.

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet