C-16-Q082mediumsingle_mcq

Difference between the parallel sides of a trapezium is $8$ cm and their perpendicular distance is $24$ cm. If area is $312$ sq cm, the longer parallel side is —

a $13$ cm
b $17$ cm
c $19$ cm
d $21$ cm

ব্যাখ্যা

From area $=\tfrac{1}{2}(a+b)h$ , we get $\tfrac{1}{2}(a+b)\times 24 = 312$ , so $a + b = 26$ . With $a - b = 8$ , solving gives the longer side $a = 17$ cm.

এই অধ্যায়ের আরও প্রশ্ন

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Chapter 16: Mensuration — সব প্রশ্ন দেখুন (210টি) →

Difference between the parallel sides of a trapezium is 888 cm and their perpendicular distance is 242424 cm. If area is 312312312 sq cm, the longer parallel side is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Difference between the parallel sides of a trapezium is 888 cm and their perpendicular distance is 242424 cm. If area is 312312312 sq cm, the longer parallel side is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Difference between the parallel sides of a trapezium is $8$ cm and their perpendicular distance is $24$ cm. If area is $312$ sq cm, the longer parallel side is —

Difference between the parallel sides of a trapezium is $8$ cm and their perpendicular distance is $24$ cm. If area is $312$ sq cm, the longer parallel side is —