Answer:
Therefore,
Step-by-step explanation:
Given:
In ΔABC, BC=4 cm,
angle b=angle c, and
angle a=20°
To Find:;
AC = ?
Solution:
Triangle sum property:
In a Triangle sum of the measures of all the angles of a triangle is 180°.
We know in a Triangle Sine Rule Says that,
In Δ ABC,
substituting the given values we get
Therefore,
First, get the area of the rectangular yard.
Area = L x W
Area = 16 X 14
Area = 224 square feet
Get the area of the circular fountain.
Area = pi x r^2
Area = 3.1415 x (4/2)^2
Area = 12.57 square feet
Getting grass portion.
224 - 12.57 = (C) 211.43 square feet
Step-by-step explanation:
great circle = 9
= r^2. --> r = 3 m
Surface area S = 4.r^2 = 36 m^2
Volume V = 4/3.r^3 = 36 m^3
Answer:
6.32
Step-by-step explanation:
