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2 years ago

A triangle has an area of 160 square inches and the base of the triangle is 40 inches. What is the height of the triangle?

Mathematics

1 answer:

lisov135 [29]2 years ago

7 0

Answer:

answer-8 Inches.

Step-by-step explanation:

Area of triangle=160 square inches

Base of triangle=40 inches

area of triangle=1/2*base*height

160=1/2×40×height

160 =20×height

160/20=height

height=80 inches.

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I think u r confused

this sequence is geometric not arithmetic

HOw we know that ??

when we get a common difference that must Be equal

d=72-80=-8 not equal to d=64.8-72=-7.2

So it is not arithmetic

but when we get the common ratio that also must be equal

r=72/80=9/10 equal to r=64.8/72=9/10

So it is geometric

By using this equation:

a(n)=a*r^(n-1)

and we have a=80 , r=9/10

Then a(n)=80*(9/10)^(n-1)

I really hope this helps <3

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iogann1982 [59]

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