A triangle has side lengths of 18 cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right
1) Wayne used this diagram to compute the distance from Ferris, to Dunlap...
25 mi.
2) A triangle has side lengths of 18cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right.
Acute
3) The area of a square garden is 200 m^2. How long is the diagonal?
20 m
4) A conveyor belt... (I'm not going to type this all down)
14 ft
5) Find the missing value to the nearest hundredth.
tan ___ = 73
89.22
6) Write the ratio for sin A and cos A. The triangle is not drawn to scale.
sin A = 48/50, cos A = 14/50
7) (Sorry you're on your own.)
last part is on brainly. just search up "find the lengths of the missing sides in the triangle 7 45" and it should be one of the first links
With two long, almost equal, sides and a short side, you can visualize it in your head. It is acute.
It certainly is not a right angle, since 18^2 + 80^2 does not equal 81^2.
The law of cosines can be used to answer the problem numerically.
The largest angle C is opposite the longest side, c.
c^2 = a^2 + b^2 -2ab cosC
When c^2 < (a^2 + b^2), as it is here, cosC must be positive, making C an acute angle.
1. 25 mi
2. Acute
3. 20m
4. 14ft
5. 89.22
6. sin A= 48/50, cos A = 14/50