For the first is 3864
The second is 1320
A=3.14(which is pie) x 20.5^2
A=420x pie
A=1320
For the third is 2544
3864-1320=2544
Sorry if this is wrong too.
Step-by-step explanation:
hey, hope this helps/ is right :))
Step-by-step explanation:
first u find the angles and then u use some low divide the length of triangle by sin of opposite angles