You would mutiply 56.25 x 6 and 25.8 x 3 and get 337.5 + 77.4 and the final answer would be $414.9
The answer is a. 40 square centimeters, because the area of a triangle is A=(1/2)Bh, or half of Base multiplied by half of Height.
Answer:
Step-by-step explanation:
It's easier to convert the angle into degrees.
5π/8 ≅ 112.5°, which is in quadrant II