Class : VIII Sec
Date:
Roll No:
Marks:20
Duration: 1 Hour
1) Answer the following.
(4x3 = 12)
1) Name any two letters of English alphabet, which have more than one line of Symmetry.
2) The area of the rhombus is 48m², if one of its diagonal is 16m, find the length of their
diagonal
3) The parallel sides of a trapezium are 21 cm and 19 cm. And distance between them is
13 cm. Find the area or the trapezium.
4) Find the area of the quadrilateral:
(2 X
4 =can you show me answers
Answers
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Step-by-step explanation:
1) H and I are two letters of English alphabet, which have more than one line of Symmetry.
2) let the other diagonal = x = d2
d1 = 16m
We know that
Area of rhombus = 1/2 × d1 × d2
48m² = 1/2× 16 × x
48m ² = 8x
x = 48/8 m
= 6 m
Thus, d2 is 6 m.
3) first ll side = 21 cm
Secound = 19 cm
Height = 13 cm
Area od trapezium = 1/2 ( sum of ll side) × h
= 1/2(21+19)×13 cm
= 1/2 × 40 ×13 cm
= 20 × 13
= 260 cm²
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