Answer:
123.5 m^2
Step-by-step explanation:
The area of the whole rectangle is 9 x 19 = 171 m^2
The area of the region that isn't shaded is (5 x 19)/2 = 47.5 m^2 because the height of the triangle is 5 (9 - 4) and the area of a triangle is
(height x length)/2
171 - 47.5 = 123.5 m^2
Answer: Radius = 10 cm and Arc length = 5 cm
Step-by-step explanation:
The area of a sector with radius r and central angle
(In radian) is given by :-

Given : A sector of a circle has area
and central angle 0.5 radians.
Let r be the radius , then we have

Thus, radius = 10 cm
The length of arc is given by :-

Hence, the length of the arc = 5 cm
Answer:
4
Step-by-step explanation:
We know 100 centimeters = 1 meter.
We know the plant grows 10 cm in 1 week.
100 - 60 = 40.
40 cm remaining / 10 cm per week = 4 weeks.