Answer:
<h2>A = 3x²</h2>
Step-by-step explanation:
The formula fo an area of a triangle:
b - base
h - height
We have
x - base
6x - height
Substitute:
The correct option as per me is (b)
To answer this question, we need o divide.
Since she has 1180 buttons, we can divide that number by the amount of buttons it takes to make a shirt, 6.
1180/6=196
Hope this helps!
Note that a squared pyramid has a square base & 4 equal triangles.
To find the lateral the lateral area you calculate the area of the 4 equal triangles and to find the surface area (total Area) you add the area of the base:
Area of each triangle = side (5) x slant (9) and you divide by 2
==>Aera of 1 triangle = (9x5)/2 = 45/2 & for the 4 triangles
Lateral area = (45/2) x 4 = 90 in²
Now the base area (square) = 5 x 5= 25 in²
so the surface area = 90+25 = 115 in² (answer a)
