Answer:
x = 77 degrees
Step-by-step explanation:
To get the value of x, we use the angle arc relationship
Mathematically, we have this as follows;
x = (76 + 78)/2
x = 77
If it is a ratio of 1:2:3 then it has to be a 30 60 90 triangle in order for it to be a right triangle
Answer:

Step-by-step explanation:
The penguin swam around half of the perimeter, or circumference, of the pool. The first step is to calculate that. You can find the circumference of a circle by multiplying the diameter by pi. Therefore, the circumference of this island is 20pi. Half of that is
meters. Hope this helps!
The side lengths 10.5 cm, 20.8 cm, and 23.3 cm create a right scalene triangle.
Answer:
8
Step-by-step explanation: