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20. The base of a triangular board is 14 m and the height is 12 m. A circle was drawn at the
center with a radius of 4 m. Find the area of the space not covered by the circle.​


Sagot :

Area of Triangle

A∆ = ½bh

where

b = base = 14m

h = height = 12m

solve for Area,

A∆ = ½bh

A∆ = ½(14)(12)

A∆ = 84 m²

Area of Circle,

A of Circle = πr²

where

A of Circle = ?

π = 3.14

r = radius = 4m

Solve for Area,

A of Circle = πr²

A of Circle = 3.14(4)²

A of Circle = 3.14(16)

A of Circle = 50.24 m²

Area Remaining = A∆ - A of Circle

Area Remaining = 84 - 50.24

Area Remaining = 33.76 m²