The surface area of that pyramid is 192 cm^2
Answer:
I don't have much time cause Zoom is gonna start but the answer to 8 is <u><em>B</em></u>
Step-by-step explanation:
The answer is <em>B</em> because since it's a triangle it will always add up to 180.
Triangles= 180 always
Terry, Kevin and Barry have a total of 215 marbles.=> Terry has 20 marbles more than Barry = x + 20=> Kevin has 10 marbles more than Terry = (x + 20) + 10=> Barry = xSolutions:=> x + x + 20 + x + 20 + 10 = 215=> 3x + 50 = 215=> 3x = 215 - 50=> 3x = 165=> 3x / 3 = 165 / 3=> x = 55Barry have = 55Terry = 55 + 20 = 75<span>Kevin => 75 + 10 = 85</span>
