Answer:
12
Step-by-step explanation:
the shapes are similar which means the sides are proportional, you can set up a ratio using the sides as 10/40 = 3/x
solving that gives you x =12
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Given that the two triangles are similar:

=


=

6x + 28 = 4 x 25
6x + 28 = 100
6x = 100 - 28
6x = 72
x = 12
Answer:
56.6 square yards.
Step-by-step explanation:
Given:
A fountain in the park has two circular pools that are the same size.
<u>Question asked:</u>
What is the total area of the pools if the radius is 3 yards ?
<u>Solution:</u>
First of all we will calculate the area of a circular pool.
As we know:


Area of circular pool nearest tenth = 28.3 square yards
Now, as given that both pools are of same size.
Total area of the pools = 28.3 square yards + 28.3 square yards
= 56.6 square yards.
Thus, the total area of the pools are 56.6 square yards.
Because the two angles equal each other:
80=20x and solve for x
These are corresponding angles