What is the surface area of the square-based pyramid below? give me the corect awnser for brainlyest
1 answer:
Answer:
Step-by-step explanation:
square base
32 x 32 = 1024
the two 32 by 34 triangles
32 x 34 ÷ 2 × 2= 1088
the two 30 by 32 triangles
30 x 32 ÷ 2 x 2 = 960
The formula I used to do this was base x height ÷2 but because there were two equal triangles I multiplied a 2 to the end.
Then to add them all up to get
1024 + 1088 + 960 = 3072
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The lines are: B) Perpendicular
Step-by-step explanation:
we have to convert both lines in slope-intercept form to find slopes
So,
Let m1 be the slope of first line
For the second line:
Let m2 be the slope of line 2
So,
If the lines are parallel, their slopes are equal
If the lines are perpendicular, product of their slopes is -1
We can see that
Hence,
The lines are: B) Perpendicular
Keywords: Slopes, Parallel lines
Learn more about slopes of lines at:
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