Answer:
a=x^2-7x
Explanation:
a=1/2bh
a=1/2(x-7)(2x)
a=1/2(2x^2-14x)
area = x² - 7x
The area (A) of a triangle is calculated as
A = bh ( b is the base and h the perpendicular height )
Here b = 2x and h = x - 7 , thus
A = × 2x(x - 7) = x(x - 7) = x² - 7x
5.2m questions
6.7m answers
bh ( b is the base and h the perpendicular height ) × 2x(x - 7) = x(x - 7) = x² - 7x