What's the height of a triangle if we know the base is 20 m and the area is 100 m2? 15 m
25 m
5 m
5 m
4) 10 m

h = 10 m

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Area = 100 m²

base = 20 m

therefore,

100 m² = 1/2 * 20 m * h

h = 100 / 10

h = 10 m

28

step-by-step explanation:

8+8+6+6

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)