हिंदी

Trapezium given below; find its area.

Advertisements
Advertisements

प्रश्न

Trapezium given below; find its area.


योग
Advertisements

उत्तर

In ΔCMB 

CB2 = CM2 + MB2

(10)2 = CM2 + (6)2

100 - 36 = CM2 

`sqrt64` = CM

CM = 8 cm

Area of ABCD = `1/2 xx ( 8 + 14 ) xx 8`

= 22 × 4

= 88 cm2

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 20: Area and Perimeter of Plane Figures - Exercise 20 (B) [पृष्ठ २५६]

APPEARS IN

सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 20 Area and Perimeter of Plane Figures
Exercise 20 (B) | Q 27.2 | पृष्ठ २५६

संबंधित प्रश्न

The diagonals of a quadrilateral are 16 cm and 13 cm. If they intersect each other at right angles; find the area of the quadrilateral.


ABCD is a square with each side 12 cm. P is a point on BC such that area of  ΔABP: area of trapezium APCD = 1: 5. Find the length of CP.


Trapezium given below; find its area.


A floor that measures 15 m x 8 m is to be laid with tiles measuring 50 cm x 25 cm. Find the number of tiles required.
Further, if a carpet is laid on the floor so that a space of 1 m exists between its edges and the edges of the floor, what fraction of the floor is left uncovered?


The shaded region of the given diagram represents the lawn in the form of a house. On the three sides of the lawn, there are flowerbeds having a uniform width of 2 m.

(i) Find the length and the breadth of the lawn.
(ii) Hence, or otherwise, find the area of the flower-beds.


A quadrilateral field of unequal has a longer diagonal with 140m. The perpendiculars from opposite vertives upon this diagonal are 20m and 14m. Find the area of the field.


In the following, find the value of ‘a’ for which the given points are collinear

(2, 3), (4, a) and (6, – 3)


Find the area of the quadrilateral whose vertices are at (– 9, 0), (– 8, 6), (– 1, – 2) and (– 6, – 3)


Find the value of k, if the area of a quadrilateral is 28 sq. units, whose vertices are (– 4, – 2), (– 3, k), (3, – 2) and (2, 3)


The quadrilateral swimming pool shown is surrounded by concrete patio. Find the area of the patio


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×