Answer:
48cm²
Step-by-step explanation:
If the area A of a triangle varies jointly as the base b and the altitude h of the triangle, this is expressed as;
A = kbh
k is the constant of proportionality
If A = 70cm², b = 14cm and h = 10cm
Substitute
70 = k(14)(10)
70 = 140k
k = 70/140
k = 0.5
To get the area if base is 8 cm and the altitude is 12 cm;
A = 0.5*8*12
A = 48cm²
Hence the required area is 48cm²
Answer:
Therefore, the other side length of the Rectangle b = 4 (4/9)
Step-by-step explanation:
Although crucial information that area of the rectangle is missing we can assume it be 10 square units for understanding purposes.
Let the sides of the rectangle be a and b.
Given a = 2 1/4 units
a = 9/4 units
b=?
Area of a rectangle = product of its sides = a×b
⇒ a×b= 10
⇒ 9b/4 = 10
⇒ b= 40/9 = 4 (4/9)
Therefore, the other side length of the Rectangle b = 4 (4/9)
2,5,8,11,14 because it’s going by 3’s.
That’s way to easy for u not to know