Kiana wants to cover a triangular area of her backyard with red , concrete patio stones. each stone cost 0.42 and covers 29.26 square inches. if the triangular area has a height of 8 feet and a width of 6 feet, what is the minimum number of stone that kiana should buy to cover the triangular area in her backyard?

119 stones.

Step-by-step explanation:

Triangular area of the backyard has the height = 8 feet and width = 6 feet

Since 1 foot = 12 inches

Therefore, height of the triangle will be 8×12 = 96 feet

and width of the triangle will be 6×12 = 72 feet

Now area of the triangular area =

Area =

        = 3456 inches²

Area of the stone = 29.26 inches²

Number of stones =

=

= 118.223

She can not purchase a broken piece of stone therefore, minimum number of stones Kiana will purchase = 119.

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