2 years ago

The quadrilateral obtained by joining the mid points of adjacent sides of a square is?

Mathematics

1 answer:

Anit [1.1K]2 years ago

3 0

Answer:

Square

Step-by-step explanation:

the quadrilateral obtained by joining the mid points of adjacent sides of a square is a square

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Find the sum of all multiples of 7 lying between<br>500 & 900

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Answer:

Sₙ = 57/2 * (504 + 896) = 39900

Step-by-step explanation:

first multiple of 7 after 500 is: 72 *7 = 504

last multiple of 7 before 900 is: 128 *7 = 896

a₁ = 504

aₙ = 896

where n = 128-72 +1 = 57

sum of arithmetic sequence: Sₙ = n/2 * (a₁ + aₙ)

Sₙ = 57/2 * (504 + 896) = 39900

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there are 120 seats in the balcony of theatre .if this 1/5 of the total seats, what's the total number of seats in the theater

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Answer:

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Step-by-step explanation:

We know there is 120 seats on a balcony and that is $\frac{1}{5}$ of the total seats, we want to find the total number of seats so,

120 seats = $\frac{1}{5}$

We know that a whole fraction sums to 1 so for example $\frac{1}{5} +\frac{4}{5} =\frac{5}{5} =1$

120 seats = $\frac{1}{5}$

Multiply both sides to make it a whole fraction

600 seats = $\frac{5}{5} =1$

So if there is 120 seats and that number is only $\frac{1}{5}$ of the total number of seats then the total number of seats is 600

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The quadrilateral obtained by joining the mid points of adjacent sides of a square is?​​

The quadrilateral obtained by joining the mid points of adjacent sides of a square is?