Question

exaplation needed...... ​

Answer 1

Answer:-

• The length of the other parallel  side is 7 cm.

Given :-

• The area of Trapezium is 34 cm²
• The length of one of the parallel  side is 10 cm.
• The height is 4 cm.

To Find :-

• The length of the other parallel side.

Solution :-

• As given,
• The area of Trapezium is 34 cm²

So, We know that :-

$\bigstar\;\boxed{\bf Area\;of\;Trapezium= \dfrac{1}{2}\times (l_1 +l _2)\times h}}}$

Putting values,

⇒ 34 =  ½ × (10 + x) × 4

⇒ 34 =  ½ ×(40 + 4x)

⇒ 34 = 20 + 2x

⇒ x = 7

∴ The length of the other parallel  side is x = 7 cm.

Answer 2

Answer:

let the lengths of parallel sides = 10cm and b cm

height = 4cm

area = 1/2 × (10+b) × 4

34 = 2 × (10+b)

10+b = 34/2 = 17

b = 17-10 = 7cm

The length of the other parallel side is 7cm

hope this helps you