Answer:
The ratio of the length of the side opposite the 30°angle to the length of the side opposite the 90°angle is 1:2.
Step-by-step explanation:
Consider ABC, With 90° angle at B and 30° angle at C.
To find: AB:AC=?
Solution:
AB = perpendicular of the right angled triangle
AC = Hypotenuse of the triangle
The ratio of the sides ,AB:AC = 1:2.
Hence,the ratio of the length of the side opposite the 30°angle to the length of the side opposite the 90°angle is 1:2.
The transformation that can be used to show that ABCDE and its image are congruent is a 90° counterclockwise.
<h3>How to depict the transformation?</h3>
It should be noted that when we rotate a point through 90° counterclockwise, the mapping will be: (x, y) to (-y, x).
In this situation, it van be deduced that the x and y coordinates swapped positions. This illustrates a 90° counterclockwise rotation about the origin..
In this situation, since the rotation is a rigid motion, the two shapes are congruent.
Learn more about transformation on:
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X=time of the third person it would take to fill the pool
We can suggest this equation:
6[(1/20) + (1/15) +(1/x)]=1
6[(3x+4x+60)/60x]=1
(7x+60)/10x=1
7x+60=10x
7x-10x=-60
-3x=-60
x=-60/-3
x=20
Answer: the third person alone would fill the pool in 20 hours .
Answer:
V=2(1+2)a2h
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
