3 years ago

Please help!! Thank u!!

Mathematics

1 answer:

Marizza181 [45]3 years ago

8 0

Answer:

Step-by-step explanation:

in Δ ADM and Δ CBM

AD║BC and AC cuts it.

so ∠DAM=∠BCM (alternate angle)

∠AMD=∠CMB ( vertically opposite angles)

AM=CM (given ,M is mid point of AC)

Hence ΔAMD ≡ ΔCMB (ASA=ASA)

AD=CB

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A rectangular auditorium seats 1344 people. The number of seats in each rows exceeds the number of rows by 20. Find the number o

Tasya [4]

Let the number of rows be x

rows = x
seats in each row = x + 20

total seats = 1344
x (x + 20) = 1344
x^2 + 20x - 1344 = 0
(x + 48)(x - 28) = 0
x = -48 (rejected, answer cannot be negative) or x = 28

Therefore,
x = 28
x + 20 = 48

Check:
Row = 28
Numbers of seat per row = 28 + 20 = 48
28 x 48 = 1344 (Correct)

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