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ale6826
18.03.2021 •
Mathematics
Find the area of the trapezoid.
Recall : (b + b) h
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Ответ:
36 Sq cm
Step-by-step explanation:
Area of the trapezoid
Ответ:
side1=side2=25
base1=16
base2=30
perimiter=16+30+25+25=96 cm
area of trapezoid=1/2 height times (base1 +base 2)
base 1=16
base2=30
find height
isosolees so
30-16=14
14/2=7
find heigh using:
pythagorean theorem
25^2=7^2+h^2
625=49+x^2
subtract 49 from both sides
576=h^2
square root of both sides
24=h
(base1+base2) times height times 1/2=area
(16+30) times 24 times 1/2=(46) times 12=552 cm^22
the answer is 552 square centimiters or cm^2
and perimiter=96 cm