a. Draw two possible nets of a die.
b. The sum of three consecutive numbers is 54 Find the
numbers.
c. The sides of a triangle are in the ratio 4:7:9.If the
perimeter of the triangle is 400cm. Find the sides of the
triangle
of numhere are
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b. let be numbers are x,x+1,x+2.
so, x+x+1+x+2=54
= 3x+3=54
= 3x=54-3
= 3x=51
=. x=51/3
=. x=17
so the three consecutive numbers are 17 , 18 and 19.
c. perimeter of triangle is 400cm
sides are 4:7:9 respectively
so let be sides are x
so, 4x+7x+9x=400
20x=400
x=400/20
x=20
so all three sides are respectively
= 80cm , 140cm , 180cm
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