Answer:
390
Step-by-step explanation:
The surface area is equal to
The surface area of the triangular pyramid is equal to the area of its four triangular faces
so
In this problem
we have
substitute the values
Exact Form: 5/8
Decimal form: 0.625
Hope this helps
Explanation:
Quadrants 2 and 3 houses points that have negative x-values, while as Quadrants 1 and 4 houses points that have positive x-values.
If 'your sister' completes the text with negative y-value, the point would be in Q3.
If 'your sister' completes the text with positive y-value, the point would be in Q2.
399