1) The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 12 cm, the length of a radius of the circl
2 answers:
Answer:
1)
2)
Step-by-step explanation:
1) Remember that: The area of a quadrilateral circumscribed about a circle equals semi-perimeter (half the product of the perimeter of the quadrilateral) and the radius of the circle.
By the other hand in a quadrilateral circumscribed the sum of the measures of any pair of two opposite sides is equal to the sum of the measures of the other pair of the opposite sides.
Then you know that the sum of all sides should be 12cm+12cm=24cm
Area= Semi-perimeter*r
where
Semi-perimeter= perimeter/2= sum of all sides/2
r= radius of the circle
Then:
2) Perimeter= sum of all sides
And as the sum of the measures of any pair of two opposite sides is equal to the sum of the measures of the other pair of the opposite sides.
Perimeter=15cm+15cm=30cm
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</span>kv = wx Divide both sides by w
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Answer:
The area of the rectangle on the left side is
The area of the bottom rectangle is
The total area of the composite figure will be
Step-by-step explanation:
The area of any given rectangle can be found by multiplying the length of that rectangle by its width. The rectangle on the left side has a length of 9cm but the width is unknown. To find the width, we subtract 6cm from the width of the bottom rectangle: 10cm. And that gives us 4cm.
Therefore, we can now calculate the area to be: length × width = 9cm × 4cm = 36cm²//
The area of the bottom rectangle can be found similarly by multiplying the length: 2cm by the width: 6cm of that rectangle. And the result gives us: 2cm × 6cm = 12cm²//
The total area of the composite figure is calculated by adding the results from the left and bottom rectangles together. And that gives us: 36cm² + 12cm² = 48cm²//