Chapter 11: Q3. (page 425)
Find the area and perimeter of a square with sideslong.
Short Answer
The area of the square is and perimeter is .
Chapter 11: Q3. (page 425)
Find the area and perimeter of a square with sideslong.
The area of the square is and perimeter is .
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The length of a rectangle is 12cmmore than its width. Find the area of the rectangle if its perimeter is 100cm.
A better approximation can be found by using 100 smaller rectangles with base vertices at . Change lines and 50 as follows:
RUN the program to approximate the area of the shaded region.
Derive a formula for the area of the triangle shown by using the formula for the area of a rectangle.

The base of a rectangle is 16cmand area is.What is the height?
Use a calculator or the trigonometry table on page 311to find the area of each figure to the nearest tenth.

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