Answer:
45°
Step-by-step explanation:
three angles in a triangle sum up to 180
90° + a + a = 180°
90° + 2a = 180°
2a = 180°-90°
2a = 90°
a = 45°
Hello!
The length of side BC can be found by using the Law of Sines. This law states,
a / sin A = b / sin B = c / sin C.
Given:
Angle A = 51.2 degrees
Angle B = 60.3 degrees
Side AC (or B) = 21 cm
Side BC (or A) = ? cm
Let's plug in these values into the formula to find the missing side length.
a / sin (51.2) = 21 / sin (60.3)
a / sin (51.2) = 24.1759... (multiply both sides by sin(51.2)
a = 24.1759 · sin (51.2)
a = 18.841...
18.841 can be rounded to 19.
Therefore, the length of side BC is equal to 19 centimeters.
Answer:
As it can be seen in the attachment below,making C the correct answer hope it helped
Step-by-step explanation:
I hope this helps you
Area=length ×width
30 1/3=30.3+1/3=91/3
6 1/2=6.2+1/2=13/2
91/3=13/2.width
width =7.13.2/3.13
width =14/3
width = 4 2/3
Answer:
A
Step-by-step explanation:
12/4=3
20/4=5
