Question

the area of trapezium is 480 cm square, the distance between two parallel side is 15 cm and one of the parallel side is 20 cm. the other side is​

Answer 1

Answer :

• other parallel sides is 44 cm

Given :

• The area of trapezium is 480 cm²
• The distance two parallel sides is 15cm means height of trapezium
• one parallel sides sides is 20cm

To find :

• other parallel sides

Solution :

As we know that:

• Area of tapezium = a+b/2 × h

where , a and b is parallel sides and h is height . so , parallel sides are 20cm , height is 15cm and area of trapezium is 480

↣Area of trapezium = a + b/2 × h

↣ 480 = 20 + b/2 × 15

↣ 480 × 2 = 20 + b × 15

↣ 960 = 20 + b × 15

↣ 960/15 = 20 + b

↣ 64 = 20 + b

↣ 64 - 20 = b

↣ 44 = b

↣ b = 44

Hence other parallel sides is 44 cm

More Explanation:

• Trapezium is a closed figure
• In which 2 sides are parallel
• it consists of 4 sides
• Two opposite sides are equal but not parallel
• Area of trapezium = a + b/2 × h
• perimeter of trapezium = A + B = C + D

Answer 2

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