The area of a triangle is base x height x (1/2)
Plug in the values that are given.
Area = 10 x 12 x (1/2)
Area = 120 x (1/2)
Area = 60 in²
Hope this helps :)
Since SR+ST adds up to RT, we have 2x+7+x-6=100=3x+1.
Subtracting 1 from both sides, we get 3x=99
Dividing both sides by 3, we have x=33
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It's an irrational number.
You can cross off terminating and repeating decimal so you're left with a rational or irrational number. A rational number is something that can be put into fraction form and/or have repeating or terminating decimals.
So our answer would be irrational.
