Question

find out the area of the triangle if base is (2x+5)units and height is (2x-5).​

Answer 1

Answer:

base =2x+5

height=2x-5

area = 1/2 * base * height

base * height = [2x+5] * [2x-5]

2x .2x -10x+10x -25

4x²-25=0

4x²= 25

x²= 25/4

x=5/2

1/2*5/2

5/4 cm²