Welcome to Catalytic, a blog to discuss the discussion of subject matter from Higher Education, High School, Middle School and Elementary Schools. This time Katalistiwa will discuss a question that is often asked in school exams. The questions are: The area of the shaded area is
In this problem we will study the area of a simple flat shape
Formula :
Wide rectangle length = length x width
Area of triangle = x base x height
Detailed explanation of Rectangle Area Problems
Is known :
Rectangular :
length = 32 cm
width = 15 cm
Right triangle :
base = 16 cm
height = 7.5 cm
Asked:
The area of the shaded region?
Answered:
To find the area of the shaded region, we first calculate the area of the entire rectangle, then subtract the area of the right triangle.
Rectangular :
length = 32 cm
width = 15 cm
Area of rectangle = length x width
= 32 x 15
= 480 cm²
Right triangle :
base = 16 cm
height = 7.5 cm
Area of triangle = x base x height
= x 16 x 7.5
= 60 cm²
= Area of rectangle – Area of right triangle
= 480 – 60
= 420 cm²
So the shaded area is 420 cm² (C)
Question Details
Class : V
Course : Mathematics
Chapter : Chapter 3 – Area of a simple flat shape
Keywords : area of shaded region, area of rectangle, area of triangle
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