I will give crown!!
1 answer:
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Answer:
C
Step-by-step explanation:
We need to find the length of the red dotted line.
It is divided into 3 parts: the top, the middle slant, and the bottom
<u>The top</u>
Goes from y = 50 to y = 120, the length is:
120 - 50 = 70 units
<u>The bottom</u>
Goes from x = 60 to x = 120, the length is:
120 - 60 = 60 units
<u>The middle slant</u>
This is hypotenuse of the right triangle shown.
We will use Pythagorean Theorem to solve for this length, let it be x.
The theorem is:
Leg^2 + Another Leg^2 = x^2
One leg goes from x = 20 to x = 60, the length is 60 - 20 = 40
Another leg goes from y = 20 to y = 50, the lenth is 50 - 20 = 30
So, we have:
THe slant length is 50 units
TOtal fencing is: 70 + 60 + 50 = 180 units
1 unit is 3 feet, so
180 units * 3 = 540 feet
C is the correct answer
Answer:
144cm²
Step-by-step explanation:
The surface area of a shape = area of all the sides added together
area of bottom side (square) = 6 x 6 = 36
area of triangles = x 6 x 9 = 27
27 x 4 =108
108 + 36 = 144