Answer:
Step-by-step explanation:
3x + 5 = 35
3x = 30
x = 10
25
The triangle given by 9, unknown, and 15 and the triangle given by 15, unknown, and x are similar triangles and therefore 9:15 = 15:x
X is 25 in this case
Answer:
14.13 ft²
Step-by-step explanation:
The area of a semicircle is

We were given the radius of the semicircle to be: r=3 feet.
We were also asked to use π as 3.14.
We substitute into the formula to get:

This is the same as:

Or


The area of the semicircle is 14.13 ft²
Answer:
Step-by-step explanation:
If Δ JKL ~ Δ JHG , then
=
≠
⇒ triangles are not similar