Answer:
A
Step-by-step explanation:
DE corrsponding to the LN, EF corrsponding to the MN, and LN:DE=MN:FE=3
and angel N is corrsponding to the angle E,so it 's SAS.
Answer:
The total surface area of a regular hexagonal pyramid is 146.2 cm².
Step-by-step explanation:
The base is a regular hexagon 4cm on a side. its height is 8 cm.
The total surface area of a pyramid with regular hexagon base

Where, a represents the base edge and h represents the height of the pyramid.
The area of given regular hexagonal pyramid is





The total surface area of a regular hexagonal pyramid is 146.2 cm².
Hey there :)
- tan²x + sec²x = 1 or 1 + tan²x = sec²x
sin²x + cos²x = 1
Divide the whole by cos²x


so

and

so

Therefore,
tan²x + 1 = sec²x
Take tan²x to the other side {You will have the same answer}
1 = - tan²x = sec²x or sec²x - tanx = 1
Answer:
E=-24
Step-by-step explanation: