Answer:

Step-by-step explanation:
Solve for
:

-Subtract
on both sides:


So, therefore, the final answer is
.
A = 1/2 BH
#17
B = 3 H = 4
A = 1/2 BH
A = 1/2 (3)(4) = 6
#18
B = 6 H = 4
A = 1/2 BH
A = 1/2 (6)(4) = 12
#19
B = 12 H = 8
A = 1/2 BH
A = 1/2 (12)(8) = 48
#20
B = 11 H = 5
A = 1/2 BH
A = 1/2 (11)(5) = 27.5
It is simple actually the answer is 1/8
Answer:
i think it may be 21.98 but i dunno
Step-by-step explanation: