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The base of a triangle is 18 cm and its height is 7w-1 cm. Find the expression for the triangles area

The Base Of A Triangle Is 18 Cm And Its Height Is 7w1 Cm Find The Expression For The Triangles Area class=

Sagot :

Answer:

Area = 9(7w -1) cm²

Step-by-step explanation:

Area of a triangle is given by the expression,

Area = [tex]\frac{1}{2}(\text{Base})(\text{height})[/tex]

From the picture attached,

Base of the triangle = 18 cm

Height of the triangle = Vertical distance of the third vertex from the base joining other two vertices = (7w - 1)

Area = [tex]\frac{1}{2}(18)(7w-1)[/tex]

        = 9(7w - 1) square cm

Therefore, expression for the area of the given triangle will be,

Area = 9(7w -1) cm²

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