To find the ratio of their perimeters, you need to know that the ratio of a perimeter is the square root of the ratio of the areas. (Area is 2 dimensional, so what you do to the perimeter will have twice or be squared for the area).
So, you would simplify the ratio of 18/32 to 9/16.
Then take the square root of 9 and 16 separately to find the ratio of the perimeters.
Square root of 9 is 3.
Square root of 16 is 4
So, the ratio of the perimeters is 3 in/4 in.
Answer:
ms. sempe is right.
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first we'll find area of trapezium.
area of trapezium = 1/2×height×(sum of parellel sides of the trapezium)
area of trapezium =1/2×4×(13+24)
area of trapezium =1/2×4×37
area pf trapezium = 74in²
now area of rectangle.
area of rectangle = length ×width
area of rectangle= 24in×7in
area of rectangle =168 in²
area of the figure= 74in²+168in²
area of figure=242in²
Answer:
6 square inches
Step-by-step explanation:
