geometry a (checkpoint 14)

The following design shows a structure that supports the roof of a house. It is in the shape of a triangle. © 2019 StrongMind. Created using GeoGebra. If AB=8.2, BD=6, CD=6, and m∠ADC=90∘, which figure is a perpendicular bisector of △ABC?

AD

In the following figure, AC=4 units and CB=4 units. © 2019 StrongMind. Created using GeoGebra. Which statements are true? Select all that apply.

AE=EB m∠AED=90∘

In the following figure, ¯BA¯ is a perpendicular bisector of ¯DC¯. © 2019 StrongMind. Created using GeoGebra. If BD=3.7 units and AC=4.1 units, what is the length of ¯BC¯?

3.7

Use the figure to answer the question. © 2019 StrongMind. Created using GeoGebra. Allison drew a map of where she and her friends live. Allison's house is at point A, and her friends live at points B, C, and D. She only wrote some of the distances, in blocks, on the map. Also, ¯AD¯ is a perpendicular bisector of ¯BC¯. Allison wants to know the distance between her house and point C.C. What is the measure of AC?

4.24

Isha constructs the wood frame of a paper kite. She crosses two sticks as shown in the following figure. © 2019 StrongMind. Created using GeoGebra. She wants to connect the sticks so that the edges of the paper have certain measurements. She wants KM=KN and ML=NL. How should she position the sticks?

Place ¯KL¯ at a right angle on ¯MN¯ so it bisects ¯MN¯.