From the diagram we see there is a 90 degree angle, also the radius from a point B to the center of the circle is the same as the radius from the center of the circle to the right angle.
Let the radius be r.
sin a=opposite/adjacent
sin 76.6=r/(r+112)
0.973(r+112)=r
0.973r+108.976=r
r-0.973r=108.976
0.027r=108.976
r=108.976/0.027
r=4036.15 miles
the radius of earth will r=4036.15 miles
Answer:
its 15.43
Step-by-step explanation:
you didnt put a picture for the polygons but im pretty sure this is from math nation.
Answer:
To find that a triangle can be made from these measurements you should know that the sum of two of its sides should be greater than the third side.
lets see if this rule applies...
9+9 = 18 ( greater that 17 ; its third side)
17 + 9 = 26 (greater than 9 ; its third side)
therefore, a triangle can be formed
as two of its sides are equal , it is an isosceles triangle
Hello!
As you can see, two of the triangles that we see that are made from the lengths we are given make up one face of the pyramid. We can use the triangle formula without multiplying by 1/2 to find the length of one face.
30(45)=1350
Now we multiply this by four to find all of the sides.
1350(4)=5400
We find the area of the square base
30(30)=900
Finally, we add up our lengths.
5400+900=6300
Therefore, our answer is C) 6400 yards²
I hope this helps!
Answer
B Congruent
Step-by-step explanation:
Corresponding angles are congruent when the lines are parallel
