Answer:
A = 38°
Step-by-step explanation:
We are going to use cosine law to find angle A where
a = 4.7
b = 3.9 m
c = 2.9 m

or

cos A = [(4.7)^2 + (3.9)^2 - (2.9)^2]/2(4.7)(3.9)
= 28.89/36.66
= 0.788
A = arccos(0.788) = 38°
Answer:
x=70
Step-by-step explanation:
the angles opposite 3.5 equal 55 degrees
180-55-55=70
Answer:
28/7=4 and 60/12=5
Step-by-step explanation:
Just remember to divide the diameter by two to get the radius. If you were asked to find<span> the </span>radius<span> instead of the diameter, you would simply divide 7 feet by 2 because the </span>radius<span> is one-half the measure of the diameter. The </span>radius<span> of the </span>circle<span> is 3.5 feet. You can also use the circumference and </span>radius<span> equation</span>
Answer:
Step-by-step explanation:
im not completely sure but i think it may be c