Ask a New Question

Question

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?
13 years ago

Answers

Henry
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.

































13 years ago
Henry
Correction: Used Law of cosines to find
one of the angles.
13 years ago
donovan
thanx
13 years ago

Related Questions

The area of the top of a triangular corner desk must be at least 7 sq. ft. If the base of the triang... What is the area of this triangle 22 by 16 by 28 inches What is the area of this triangle 22 by 16 by 28 inches inside is 9in? What is the area of this triangle with 22,16,28 And a nine in the middle? 1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2... At a school play, childrens tickets cost $3 each and adult tickets cost $7 each. The toral amount ea... what is the area of the triangle? (its a scalene obtuse triangle) height 4.5 ft base 8.7 ft... what is the area of the triangle shown if the height measures 6 inches and the length equals 20 inc... What is the area of the triangle? (1 point) Responses 37.5 square centimeters 37.5 square centimete...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use