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Find the area of each triangle. Round intermediate values to the nearest 10th. use the rounded value to calculate the next value. Round your final answer to the nearest 10th.

Find the area of each triangle. Round intermediate values to the nearest 10th. use-example-1
User Cthulhu
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The triangle has an area of answer choice D, 16.4 units
We know that the equation for a triangle is 1/2 b*h
We also know that 8 is the height of the triangle, so the variable missing is the base.
Using the Pythagorean theorem, (a^2+b^2=c^2), we can find the length on the missing side.
8^2+x^2=9^2
64+x^2=81
x^2=17
Square root 17 equals 4.123, so therefore the base is about 4.1 units.
(4.1*8)/2 = 16.4
User NotAChance
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