Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle?
2 answers:
9514 1404 393
Answer:
The triangle is not acute because 2² + 4² < 5²
Step-by-step explanation:
The square of the hypotenuse of a right triangle with the given short sides would be 2² +4² = 20. So, that hypotenuse would be √20, about 4.47. The long side of this triangle is longer than that, so the angle opposite is larger than 90°. The triangle with sides 2, 4, 5 is an obtuse triangle.
The triangle is not acute because 2² + 4² < 5²
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Answer:
58
Step-by-step explanation:
you can find the height of this trapezoid by using the pythagorean theorem where the hypotenuse is 18 and one leg is 8 (33-25)
let x = height
+
=
= 324 - 64
= 260 therefore, x =
=
·
or 2
A = h x (sum of the bases)
bases are 25 and 33
A = (2) ÷ 2)58