Notice the picture, the "altitude" or height of the triangle is 60, NOT 71, and its base is 52, recall that area of a triangle is A = (1/2)bh.
Answer:
6x=0.10x< 2
Step-by-step explanation:
Angle ABD = 40 Degrees. Angle DBC = 50 Degrees. Because we know that a right angle ( a boxed corner ) is 90 Degrees, you add up the X's and divide by 90 to find what X is. X in this case is 10. You then multiply using X ( 10 ). 4x10 is 40 and 5x10 is 50. Thus getting your angles.
The last one is rightHope this helps!