Answer:
408 sq. in.
Step-by-step explanation:
The total surface area of the pyramid is the sum of all 4 faces (each of them a triangle) and square base.
Triangle area is where b is base and h is height.
base of triangle is 12 and height is 11
So area of each triangle is
There are 4 of them, so total is 66 * 4 = 264
Now, square has an area of where s is the side length.
It is given s = 12, so the area of the square base is:
Total Surface Area of the Pyramid is 264 + 144 = 408 sq. in.
A- 36
B- 34
C- 22
D- 38
ANSWER IS D
23 is obtuse because its highest degree angle is more than 90
24 is acute because its highest degree angle is less than 90
25 is right because it has a right angle represented by the small square symbol
3+5+7=15
therefore you don’t want to affect the average so your going to want your numbers to be equal length away from 15 so there are multiple answers one answer would be
a=14
b=16