1.) The area of a triangle varies jointly with its base and height. If b = 20cm and
h = 16cm, the area is 160cm.
a.) What is the constant of variation?
b.) What is the area of the triangle when b = 11cm and h = 14cm
h = 16cm, the area is 160cm.
a.) What is the constant of variation?
b.) What is the area of the triangle when b = 11cm and h = 14cm
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Answer:
Formula or The Equation:
A=kbh
Substitute the given:
a.) finding the constant
160= k(20)(16)
160=k(320)
160=320k
160÷320=k
k=0.5 - Constant
b.)what is the area of the triangle when b=11cm and h=1cm?
Let k=0.5,then substitute to the formula
A=(0.5)(11)(14)
A=(0.5)(154)
A=77
Therefore,the area of the triangle is 77cm.
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