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nalex0528
20.07.2020 •
Mathematics
Find the area of the triangle.
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Ответ:
76 ft squared
Step-by-step explanation:
First, you need to find the height of the triangle using the Pythagorean theorem. By adding a line down the middle from point P to the center of line RQ you create a right triangle with 16 as a hypotenuse and a leg with the length 5 (half of the length of line RQ, 10) you can then plug this into the equation to get 5^2+b^2=16^2. Then you get 25+b^2=256, then b^2=231. You then take the square root of both sides to get a height of about 15.2. Now you can find the area of the triangle with the equation A=1/2(bxh). You multiply the base times the height so 10 times 15.2 to get 152, then multiply by 1/2, or divide it by 2, to get 76 feet squared as the area.
Ответ:
Length of missing side: 14.7 (rounded to nearest tenth)
Step-by-step explanation:
1/2 * (base) * (height) = area
Memorize this: SOH CAH TOA
sine (degrees) = opposite length/hypotenuse
sin(67 degrees) = x/16
x = 14.7 (rounded to nearest tenth)
x = missing side = 14.7
Ответ:
re
Step-by-step explanation: