Question

the length and breadth of a rectangle are 23cm and 11cm respectively . the area of the each triangles formed by joining one of its diagonal and its sides is .
$a. \: \: \: {126.5cm}^{2}$
$b. \: \: {253cm}^{2}$
$c. \: \: {280cm}^{2}$
$d. \: \: {300}^{2}$
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Answer 1

Answer:

option A

Step-by-step explanation:

because the area of the rectangle is =l×b

if we apply the formula we get,

22×11=253

know we what know the area of triangle

if half the rectangle of edge to its opposite edge we will get triangle

and we can also observed that half of the rectangle is triangle by the above lines so

now half the area of rectangle

253/2=126.5

hence the correct option is A

Answer 2

Answer:

The correct option is a .