Since there are no actual values, I guess we just have to isolate the b.
2A=bh (multiply both sides by 2)
2A/h=b (divide by h)
hope this helps
Answer:
1.39626
Step-by-step explanation:
80° × π/180 = 1.396rad

The answer is the third option, -7.
Hope this helps.
Ii is the correct answer and try using photomath it helps ;)