Answer:
D.
Step-by-step explanation:
Because the triangle is an equilateral triangle, you know that all of the angles are equal to 60°. That means that you can use trigonometry to find the height, which would be sin(60) × 20 = 17.32.
Again, because it is an equilateral triangle, all sides are equal as well, meaning that the base is also 20cm. To find the area of the triangle, we must do (20 × 17.32)/2 = 173.2cm^2, which is the area.
I hope this helps!
0.01 that should be your answer
564 (57/24)^2
= 564 · 5.64
= 3,181
Hope this helps love!
Well you find the unit rate of both rates. So 360/12=30 and 270/9=30. So both the rate are 30 miles per gallon
