The correct answer is B.
0.5(4x + 12)
2x + 6
Answer:
6cm
Step-by-step explanation:
Area of the trapezoid = Area of the square + Area of the triangle
Area of the square= Area of the trapezoid - Area of the triangle
Area of the square= 60 - 24
Area of the square= = 36 square metres
Since Area of the square= L²
L is the length of the side of the square
L² = 36
L = √36
L = 6cm
Hence the required length is 6cm
Answer: Im not sure about a, but maybe d
Step-by-step explanation:
Answer:
289in²
Step-by-step explanation:
This problem bothers on the mensuration of solid shapes, a square based pyramid
Given data
Volume v= 2023 in³
Height h= 21 in
The expression for the volume of a square based pyramid is
V= a²*(h/3)
Let us solve for a which is the side of the square base
2023= a²*(21/3)
2023= a²*7
a²= 2023/7
a²= 289 (this is the area )
a= √289
a= 17in
Proof
Hence the area of the square base is
Area = a*a= 17*17= 289in²