Answer:
5.2 in
Step-by-step explanation:
An equilateral triangle is a triangle with 3 equal sides
Divide the equilateral triangle into two congruent triangles and use Pythagoras theorem to find the height
The Pythagoras theorem : a² + b² = c²
where a = height
b = base = 6 in / 2 = 3 in
c = hypotenuse = 6 in
6² = 3² + h²
h = 36 - 9 = 27
√27 = 5.196 inch
to the nearest tenth = 5.2 in
the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero
Answer:
The width of the rectangle is 3 cm
Step-by-step explanation:
Area of the square will be x^2
And the perimeter is 4x
We know that x = p/4
As area is x^2 , we can substitute the value of p/4 in x place to get:
(p/4)^2
= p^2/4^2
=p^2/16
So this is the area A In terms of the perimeter p
Answer:
-10
Step-by-step explanation:
Answer:
8.778 or 8.8
Step-by-step explanation:
20% of 43.89 is 8.778
math: 43.89*(20/100) = 8.778