Answer:

Step-by-step explanation:

Answer:
19.17cm^2
Step-by-step explanation:
The area for a parallelogram is found by multiplying the base by the height, the base is 2.7cm and the height is 7.1cm, multiply to get the answer of 19.17cm^2
Hope this helps!
Step-by-step explanation:
Using Trignometry,
sin60° = BC/10.
=> BC = 10sin60°
= 10 * (√3/2) = 5√3 = 8.7. (1d.p.)