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28) Harry has a triangular banner with the dimensions shown below.

What is the area of the banner?

28) Harry has a triangular banner with the dimensions shown below. What is the area-example-1
User Argent
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1 Answer

13 votes
13 votes

Answer:

y² +9y

Explanation:

Area of triangle:

base = y +9

height = 2y


\sf \text{Area of triangle = $(base *height)/(2)$}


\sf =((y+9)*2y)/(2)\\\\ = (y + 9) * y


\sf = y*y + 9*y\\\\ = y^2 + 9y

User Waqas Javed
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