Question

Need the answers for letter “B”

Answer 1

b=10

Explanation:

A=1/2bh

The A and h are already given

100=1/2b(20)

So what times 20 equals 2 times as much as 100? Its 10

100=1/2(10)(20)

100=1/2(200)

100=100

So the answer is b=10