Monday
March 27, 2017

Post a New Question

Posted by on .

A childrens play area is triangular. The sides of the play area measure 90m ,225m and 255m respectively . Calculate the area of the play area?

  • math - ,

    Use Law of Cosines to find one of the
    sides:

    a = 90 m.
    b = 225 m.
    c = 255 m.

    CosB = (a^2+c^2-b^2)/2ac
    CosB=(8100+65025-50625) / 45900=0.4902
    B = 60.6 Deg.

    Area = 0.5ac*sinB
    Area = 0.5*90*255*sin60.6 = 10,000 m^2.

  • math - ,

    Correction: Used Law of cosines to find
    one of the angles.

  • math - ,

    thanx

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question