Answer: 171 cm
Step-by-step explanation: im not sure if this is right but
9x12=108
9x7=63
108+63=171
Answer:
The area of the swimming pool is 2,847.45ft, assuming this pool is a rectangle.
Step-by-step explanation:
A=l*w
A=23.15*123
A=2847.45ft
I can’t see the pictures if there are any
Answer:

Step-by-step explanation:
we know that
An isosceles triangle has two equal sides and two equal interior angles
In this problem
Triangle CDE is an isosceles triangle
because
EC ≅ DE
therefore
----> equation A
Remember that
The sum of the interior angles in any triangle must be equal to 180 degrees
so
----> equation B
---> equation C
substitute equation A and equation C in equation B


