Question

triangles with lengths of sides 7 cm, 8 cm, 9 cm​

Answer 1

Answer:

perimeter of traingle= S1+S2+S3

perimeter of triangle=7cm+8cm+9cm

=24cm

Answer 2

• As per the data given in the question, we have to find the value of the expression.

             Given data:- Sides of  a triangle

                                $A=7cm, \ B=8 cm,\ C=9cm.$

            To find:- Area of a triangle.

            Solution:-

• We know that triangle has three sides.
• the three sides of a triangle are $180$ °.
• The sum of the length of two sides of a triangle is always greater than the length of the third side.
• The Area of a triangle is equal to the addition of three sides.

           $Area=7+8+9\\Area=24cm.$

       Hence we will get Area of the triangle is $24cm.$