Divide the box into two parts for easy way answer
For cube:-
TSA
Cancel one side area
For triangular pyramid:-
Area of one base
- 0.5(Base)(Height)
- 0.5(12)(15)
- 6(15)
- 90cm^2
Area of four sides=90(4)=360cm^2
<h3>Total surface area:-</h3>
Answer:
uhm right angle 90 degrees
Step-by-step explanation:
Answer:
x = 9
Step-by-step explanation:
The perimeter is the sum of the lengths of the base and the two equal legs:
51 = x + 2(3x -6)
51 = 7x -12 . . . . . eliminate parentheses
63 = 7x . . . . . . . . add 12
9 = x . . . . . . . . . . divide by 7
Answer:area is 60, height is 4, and perimeter is 34
Step-by-step explanation:
Answer:
Step-by-step explanation:
(3 + 8)/2 = 11/2
(-1 + -6)/2 = -7/2
(11/2, -7/2)
