Answer:
625 unit²
Step-by-step explanation:
Surface area of a rectangular pyramid :
Area of base * 4(area of triangular side)
Area of base = length * width
Area of base = 15 * 15 = 225
Height of triangular side = 15
Area of triangle = 1/2 * base * height
Area of triangle = 1/2 *15 * 15 = 112.5 unit²
Surface area = 225 + 4(112.5)
Surface Area = 225 + 450
Surface Area = 625 unit²
since AC=1/2AB=6 THEREFORE C is the midpoint ofAB
Answer:
67
Step-by-step explanation:
0.71=71%.
2/100+2/100=4/100/4%
So we can subtract 71-4=67.
That tells us that the missing number is 67. Add it all up and you will get 0.71 or 71%
Answer:
i think 103.76 + 17.43
Step-by-step explanation:
The formula for circumference of a circle is <span>πd.
I'm not sure if your teacher has specified if they would like you to use 22/7, 3.14, or the </span><span>π button on a calculator, so I'l just do all of them.
22/7*4 = 88/7, or 12 4/7. If you were to use 22/7, the circumference would be approximately 12 4/7 inches.
3.14*4 = 12.56. If you were to use 3.14, the circumference would be approximately 12.56 inches.
If you were to use the </span><span>π button on a calculator, the circumference, rounded to the nearest hundredth, would be approximately 12.57 inches.
Hope that helped you!</span>