Answer:
81
Step-by-step explanation:
Assuming the ramp is against a wall or building at a 90 degree angle, then the 3 angles formed by the triangle within the ramp and wall are 9 +90 + x = 180 so 99 + x = 180 so x=81
Answer:
90 + 3 - 180 = 87
Step-by-step explanation:
I remembered doing a problem like this in Algebra, but i think this is right
Using the difference of squares rule, we can say
g^2 - 9 = g^2 - 3^2
g^2 - 9 = (g-3)(g+3)
<span>So, the answer is (g-3)(g+3). This is the same as (g+3)(g-3)</span>
If 2 triangles are similar then the angle measures are the same so the answer would be 180-(47+23) which is equal to 110 degrees