Answer:
Step-by-step explanation:
Each of the triangles is similar, so we have ...
3/5 = (3+x)/20
x = 20(3/5) -3
x = 9
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4/5 = (4+y)/20
y = 20(4/5) -4
y = 12
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3/5 = (3 + x + u)/60
u = 60(3/5) -3 -9
u = 24
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4/5 = (4 +y +v)/60
v = 60(4/5) -4 -12
v = 32
The formula to find the surface area of a circle is: pi x radius², so if we square the radius the answer would be 25, then we multiply that by 3.14 and the answer would be around 78.5, so the answer is 78.5.
Answer:
-1/5
Step-by-step explanation:
Perpendicular lines have slopes that are the opposite reciprocal of one another.
The slope of line t is the opposite reciprocal of the slope of line s:
slope of t = -1/(slope of s)
slope of t = -1/5
