Answer:
false
Step-by-step explanation:25.9cm is too big to connect to 15.9cm and 10 cm
Answer: Congruent Angles
Step-by-step explanation:
If it's a regular octahedron, then you can calculate it using the formula

where

is the length of the edge.
If it's not regular, you have to calculate the area of each side individually.

- two acute angle=<JBC and <JBG
<JBC and <JBG(because these two angle are 45°)
by definition of acute angle any angle which is between 0°to 90° then it will acute angle
- two straight line=FH ,.AD
- two right angle=<GBD and <GBA
- two obtuse angle=<BCH and <BGF