Question

find the sum of the parallel sides of a trapezium whose area is 105cm^2 and height is 7cm.​

Answer 1

Step-by-step explanation:

thsi is your answer

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Answer 2

Answer:

Hence, value of sum of parallel sides of the trapezium will be 30 cm

Step-by-step explanation:

In context to question asked,

We have to determine the sum of parallel side of trapezium

As per question,

It is given that,

Area of trapezium = 105 sq. cm.

Height of trapezium = 7 cm

As we know that,

Area of trapezium

$A = \frac{a+b}{2}\times h\\Where,\:A = Area\\a,b = Parallel\:sides\:of\:trapezium\\h =Height$

So, for determining the value of sum of parallel sides of trapezium,

We will put the value given in question in above formula,

Thus we will get,

$A = \frac{a+b}{2}\times h\\105= \frac{a+b}{2}\times 7\\=>a+b = \frac{105\times 2}{7}\\=>(a+b) = 15 \times 2 = 30\:cm$