Question

Name the undefined terms​

Answer 1

Answer:

A rhombus has 4 edges of equal length. If it has perimeter of 40cm, then each length would be

40cm4=10cm

Divide the rhombus into 4 right-angle triangle by cutting along the 2 diagonals.

Each right-angle triangle will have a hypotenuse of 10cm and one other edge with length

12cm2=6cm

Use Pythagoras Theorem to find the length of the remaining edge.

√(10cm)2−(6cm)2=8cm

Now find the area of the triangle.

12×6cm×8cm=24cm2

Since the original rhombus was made up of four such triangles, the area of the rhombus would be

24cm2×4=96cm2

Answer 2

Answer:

Three Undefined Terms: Point, Line, and Plane - Concept.