10∙20=8∙d210•20=8•d2 .
1 answer:
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Answer:
The second one
Step-by-step explanation:
Its not the third one because it is an equilateral
its not the first one because it is not obtuse
The triangle is isosceles
obtuse means the angles are big
the angles are small so they are acute
I hope this helps you
Answer:
x = 10.52 m
Step-by-step explanation:
Given that,
Length of a park = 90 m
Width of a park = 60 m
Area, A = 9000 m²
A uniform strip borders all four sides of the park for parking. We need to find the width of the strip. Let it is x. Now the area becomes,
(90+2x)(60+2x) = 9000
So, the width of the strip is equal to 10.52 m.