minnahelhoor
17.12.2020 •
Mathematics
What is the area of the triangle? A right triangle with side lengths 3.6 feet, 6 feet, and 4.8 feet. The base is 4.8 feet and the height is 3.6 feet. 8.64 feet squared 10.8 feet squared 14.4 feet squared 17.28 feet squared
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Ответ:
16.5.
Step-by-step explanation:
This is an arithmetic series because the increase is a constant 0.30.
Sum of n terms = (n/2)[a + l) where n = no.of terms a = first term , l = last term.
There are 3/ 0.3 = 10 terms so
Sum = (10/2) (0.3 + 3.0)
= 5 * 3.3
= 16.5.