Martina used 3 as the value of pi to estimate the area of a circular patio that had a diameter of 26 ft.

Mathematics

1 answer:

dezoksy [38]1 year ago

6 0

Answer:

507 ft²

Step-by-step explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

given diameter = 26 then r = 26 ÷ 2 = 13 , so

A = π × 13² ≈ 3 × 169 = 507 ft²

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Find the area of the trapezoid. points are (-5,-3)(4,-3)(6,-7)(-7,-7)

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Answer:

44 square units

Step-by-step explanation:

The area of a trapezoid with bases b₁ and b₂ and height h is given by the formula

$A=\left(\dfrac{b_1+b_2}{2}\right)h$

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$b_1=|-5-4|=|-9|=9\\b_2=|6-(-7)|=|6+7|=13$