Answer:
D.supplementary angles
Step-by-step explanation:
81+99=180
Answer:
0
Step-by-step explanation:
Step-by-step explanation:
The area of triangle is
=21×height×base=21×3×4=3×2=6 cm2
There would be 1/12 of the cake left.
We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.