Question

Harry has a triangular banner with these dimensions:
y + 9 and 2y.
What is the area of the banner?
HINT: area = bh/2 where b = base and h = height

Answer 1

Answer:

put y=1

1+9=10

2y

y=1

2×1=2

now

b=10

h=2

bh/2,10×2/2

20/2=10