Answer:
-21.5
Step-by-step explanation:
-12-6=-18 minus 3.5=-21.5
Answer:
1. -2
2. 21^2
Step-by-step explanation:
Given:
LMN is an equilateral triangle.
LM = LN = MN = 12 cm
To find:
The height of the triangle h.
Solution:
In a right angle triangle,



Multiply both sides by 12.


Therefore, the height of the triangle is
cm.