Answer:
Surface area of Tetrahedron is 62.4 square units.
Note:(This is for only one surface of Tetrahedron)
Step-by-step explanation:
Given :
The shape is Tetrahedron.
length of Base = 12 unit.
length of Height = 10.4 unit
To Find :
Surface area of Tetrahedron = ?
Solution:
Tetrahedron:
It is a polyhedron composed of
4 Triangular faces, ( four triangular surface)
6 Straight edges, and
4 Vertex corners.
Base Shape: Triangle
Side Shape: Triangle
We need to find surface area of Tetrahedron
Therefore, one side surface area of Tetrahedron is 62.4 square units.
If we required total surface area of the Tetrahedron then it will be multiplied by four, because it has 4 surface or 4 face.
Total surface area of Tetrahedron = 4 × 62.4
= 249.6 square units
Answer:
Area of the figure = 16 + 12.56 = 28.56 units²
Step-by-step explanation:
The area of the figure below is when you add the area of each recognizable shape that makes up the figure.
From the figure I can recognize 4 squares and quarter of a circle into 4 places.
The radius of the circle is 2 unit while the sides of the square is also 2 units.
Area of the squares
area = L²
area = 2² = 4
area for 4 squares = 4 × 4 = 16 units²
Area of the quarter circles.
area = πr²/4
area = π × 2²/4 = 4π/4 = π
area of the 4 quarter circles = 4π = 4 × 3.14 = 12.56 units²
Area of the figure = 16 + 12.56 = 28.56 units²
It’s actually all except bottom left
Answer:
radius =
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 1)² + (y + 3)² = 73 ← is in standard form
with r² = 73 ( take the square root of both sides )
r =
If you would like to know what is 5% of 225, you can calculate this using the following steps:
x = 5% of 225
x = 5/100 * 225
x = 11.25
Result: 5% of 225 is 11.25.