Answer:
1.) Triangle is 1/2 x b x h (Which is option C)
2.) Rhombus is ½ × d1 × d2. (Which is option A)
3.) Trapezoid is ½(b 1+b 2)h or (b1 + b2)h/2 (Which is option B)
4.) Parallelogram is base x height (Which is option D)
Step-by-step explanation:
