maths

A rhombus shaped sheet whose perimeter is 32cm and one of the diagonal is 10cm long painted on both the sides at the rate of rs5 per Sam.find the cost of painting.

  1. 👍 0
  2. 👎 0
  3. 👁 99
  1. All four sides are equal, so each side of the rhombus is 8 cm
    get angle Ø , opposite the 10 cm diagonal

    10^2 = 8^2 + 8^2 - 2(8)(8)cosØ
    cosØ = 7/32, then sinØ = 5√39/32

    area = 8(8)sinØ
    = ...

    you take over

    1. 👍 0
    2. 👎 0
    posted by Reiny

Respond to this Question

First Name

Your Response

Similar Questions

  1. heron formula

    A RHOMBUS SHAPED SHEET WITH PERIMETER 40 CM. AND ONE DIAGONAL 12 CM., IS PAINTED ON BOTH SIDES AT THE RATE OF RS.5 PER METER SQUARE. FIND COST OF PAINTING.

    asked by manjeet on July 9, 2012
  2. Maths

    A rhombus sheet,whose perimeter is 32 m and whose one diagonal is 10 m long , is painted on both the sides of Rs.5 per m^2.Find the cost of the painting

    asked by Faswana on June 28, 2014
  3. maths

    the length of the diagonals of a rhombus are 24cm and 32cm. the perimeter of the rhombus is (A) 9cm (B) 128cm (C) 80cm (D) 56cm plz do explain how to find. thank you

    asked by chinnu on August 31, 2011
  4. Math

    The larger angles of a rhombus are twice the smaller angle of the rhombus. If the shorter diagonal is 20, find the perimeter of the rhombus.

    asked by Xinyi panggg on December 13, 2013
  5. Math

    the larger angles of a rhombus are twice the smaller angle of the rhombus. if the shorter diagonal is 20, find the perimeter of the rhombus

    asked by Simon on December 10, 2013
  1. geometry

    the perimeter of a rhombus is 36 inches. if the longer diagonal is 14 inches what is the length of the shorter diagonal of the rhombus?

    asked by mc on March 23, 2010
  2. Geometry proving quadrilaterals

    Proving quadrilaterals PLEASE PLEASE PLEASE HELP *the diagonals of a square bisect the vertex angle * the diagonal of a rhombus are perpendicular *each diagonal of a rhombus bisects the opposite angles of the rhombus help me prove

    asked by Julia on September 30, 2013
  3. math

    Diagonal of a rhombus are in the ratio 3:4. If its perimeter is 40cm, find the length of the side and diagonals of rhombus

    asked by dj singj on December 31, 2017
  4. geometry

    I need help with figure E Find the areas of the following figures. FIGURE A = 24? a rhombus with a perimeter of 20 meters and a diagonal of 8 meters FIGURE B = 120? a rhombus with a perimeter of 52 meters and a diagonal of 24

    asked by Anonymous on January 20, 2018
  5. math

    Each side of a rhombus is 5 inches long and the shorter diagonal is 4 inches. Find the angle of the rhombus and the longer diagonal.

    asked by jessa on February 13, 2011

More Similar Questions