It is an acute triangle since all the sides are less than 90 degrees (it's also equilateral)
How am I so supposed to solve the question without the picture?
Answer:
1/2
Step-by-step explanation:
x + 9 = -15x = [1]
x - x + 9 = -15x -x = 1
9 - 1 = -16x
8 = 16x
8/16 = 16/16x
1/2 = x
Hope this helps