Which of the following congruent statements correctly describes the triangles below ?

Which expression gives the area of the triangle shown below

Find the area of the regular hexagon if a side is 20 cm.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.