C-16-Q086mediumsingle_mcq

Plot of $80$ m by $60$ m has a pond inside, with $4$ -m-wide border. The pond dimensions are —

a $76$ m by $56$ m
b $72$ m by $52$ m
c $74$ m by $54$ m
d $80$ m by $60$ m

ব্যাখ্যা

A uniform $4$ -m border around the pond removes $4$ m from each edge, i.e. $8$ m from each dimension. Thus the pond measures $80 - 8 = 72$ m by $60 - 8 = 52$ m.

এই অধ্যায়ের আরও প্রশ্ন

C-16-Q087With plot and border width m around the pond, the area of the border is —
C-16-Q088A square has a -m-wide path outside it; path area is sq m. The side of the square is —
C-16-Q089The perimeter of a square equals that of a rectangle whose length is thrice its breadth and area sq m. The bre
C-16-Q090With the rectangle of area sq m and length breadth , the side of the square having same perimeter is —
C-16-Q091Sides of a parallelogram are cm and cm and the smaller diagonal is cm. The semi-perimeter of the triangle form
C-16-Q092Area of a regular polygon with sides each of length equals —
C-16-Q093Each interior angle of a regular polygon with sides is —
C-16-Q094The half-angle at a vertex of the isosceles triangle formed by joining the centre of a regular -gon to two adj
C-16-Q095The area of a regular pentagon of side cm (use ) is approximately —
C-16-Q096For a regular hexagon, each central angle subtended by a side at the centre is —

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

Plot of 808080 m by 606060 m has a pond inside, with 444-m-wide border. The pond dimensions are —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Plot of 808080 m by 606060 m has a pond inside, with 444-m-wide border. The pond dimensions are —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Plot of $80$ m by $60$ m has a pond inside, with $4$ -m-wide border. The pond dimensions are —

Plot of $80$ m by $60$ m has a pond inside, with $4$ -m-wide border. The pond dimensions are —