Triangle RST was dilated by a scale factor of . The image, triangle R'S'T', is an isosceles triangle, with each leg measuring 8
units.
What is the length of a leg of the pre-image, triangle RST?
What is the length of a leg of the pre-image, triangle RST?
2 answers:
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Answer:
l = 2.25 cm
Step-by-step explanation:
given l is inversely proportional to w² then the equation relating them is
l = ← k is the constant of proportion
(i)
to find k use the condition w = 1.5 , l = 16 , then
16 = =
( multiply both sides by 2.25 )
36 = k
l = ← equation of proportion
(ii)
when w = 4 , then
l = =
= 2.25 cm
Answer:
624.8 pi
Step-by-step explanation:
Given that a parabola open up with original as vertex is rotated about x axis
LImits for x are 1 and 5
y = x^2 is the parabola
We have volume when rotated about x axis is
Here lower limit = 1 and higher limit = 5
Volume generated = 624.8 pi