3 years ago

What a the area of the shaded triangular section

Mathematics

1 answer:

konstantin123 [22]3 years ago

3 0

Answer:

The answer is 72 square inches, since there are 24 triangles, and you do 36*48/24, which equals to 72.

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Troyanec [42]

Pythagorean theorem is $a^{2} + b^{2} = c^{2}$
and using that sin is opposite/hypotenuse, you can find the third side of the triangle.
$11^{2}+(adjacent)^{2} = 61^{2} \\ 121+ (adjacent)^{2} = 3721 \\ (adjacent)^{2}=3600 \\ adjacent = 60$
now you know adjacent is 60, so cos=60/61

4 0

3 years ago

211 minus 87.4 decimal subtraction

Pavlova-9 [17]

211 - 87.40 equals 123.60.

To see if your answer is correct just add 123.60 and 87.40 together.

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3 years ago

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Klio2033 [76]

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