The area of square is : 225.0
Area of a circle= (22/7)*r^2 where, r is the radius of the circle when r=15, area of the circle= 3.14*15*15 = 706.5 sq.units
Let b = x, so h = 15 - x. A = (bh)/2 A(x) = [x(15 - x)]/2 A(x) = -(1/2)x2 + (15/2)x since the coefficient of x2 is negative, we have a maximum value of the area when x = (-15/2)/[2(-1/2) = 15/2 A(15/2) = -(1/2)(15/2)2 + (15/2)(15/2)] = -225/8 + 225/4 = (-225 + 500)/8 = 225/8 Thus, the maximum area of the given triangle would be 225/8 cm2.
That would depend on the dimension of the green triage. If the triangle was formed by joining two opposite corners of the parallelogram then it would be half the area of the parallelogram. Area of parallelogram = 15*2 = 30 square cm. 1/2 the area = 15 square cm.
The area of a triangle is (1/2) x (length of the base) x (height of the triangle). You ought to be able to handle it from this point.
15
area = base x height ÷ 2 ⇒ height = 2 x area ÷ base ⇒ height = 2 x 15 ÷ 3 = 10 inches.
Area = L*W = 15 * 2 = 30 square inches.
pi * 225/4 Radius is 15/2 pi r2 = pi * (15/2)2 = pi * 225/4
Area = 1/2*(15+11)*7= 91 square units
Area = 1/2*5*15 = 37.5 square units
Its circumference is: 15*pi cm Its area is: pi*7.5^2 square cm