Rachel collected 56 rocks at the beach. She is placing them into bags to give to her friends. She says that if she puts 4 rocks
2 answers:
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Answer:
Step-by-step explanation:
<em>Look at the picture.</em>
We have
square with side length a = 9
trapezoid with base lengths b₁ = 9 and b₂ = 6 and the height length h = 6
right triangle with legs lengths l₁ = 3 + 6 = 9 and l₂ = 6
The formula of an area of a square
Substitute:
The formula of an area of a trapezoid:
Substitute:
The formula of an area of a right triangle:
Substitute:
The area of the shape:
