Step-by-step explanation:

Answer:
Option (3) will be the answer.
Step-by-step explanation:
Area of a triangle = 
= 
Since, m∠A + m∠B + m∠C = 180°
60° + 60° + m∠C = 180°
m∠C = 180° - 120°
m∠C = 60°
Therefore, ΔABC is an equilateral triangle.
AB ≅ BC ≅ AC ≅12
Sin 60° = 

CD = 6√3
Now area of ΔABC = 
=
= 62.35
≈ 62.4 square units
Therefore, Option (3) will be the answer.
Answer:
Step-by-step explanation:
First add 45 and 78 to find the total weight in grams.
45 + 78 = 123
Then find the weights that will work 1 100, 2 10, 3 1,
there are websites such as
mathpapa
algebra tiger - favorite
and many more that will give you the CORRECT answer and will give u a step by step explanation on how it was answered
Answer:
Acceleration equals zero because of constant velocity

coefficient
Fr = coefficient × r
60.62= ce ×100
0.60 = coefficient